Remove redundant prelude imports

When importing the prelude of a crate like `gst` the `glib` prelude is
provided too.  Shedding these imports saves quite a few lines and
adheres to keeping it simple; we're not reexporting base/parent preludes
for no reason :)

examples/src/bin/encodebin.rs

@@ -14,7 +14,6 @@
 
 use gst::element_error;
 use gst::element_warning;
-use gst::prelude::*;
 
 use gst_pbutils::prelude::*;
 

examples/src/bin/glfilter.rs

@@ -27,8 +27,6 @@ void main () {
 
 mod mirror {
     use super::{gl, FRAGMENT_SHADER};
-    use gst::subclass::prelude::*;
-    use gst_base::subclass::prelude::*;
     use gst_base::subclass::BaseTransformMode;
     use gst_gl::prelude::*;
     use gst_gl::subclass::prelude::*;

examples/src/bin/gtkvideooverlay.rs

@@ -17,8 +17,6 @@
 // {videotestsrc} - {xvimagesink(on linux)}
 // {videotestsrc} - {glimagesink(on mac)}
 
-use gst::prelude::*;
-
 use gst_video::prelude::*;
 
 use gio::prelude::*;

examples/src/bin/rtsp-server-subclass.rs

@@ -78,7 +78,6 @@ fn main_loop() -> Result<(), Error> {
 mod media_factory {
     use super::*;
 
-    use glib::subclass::prelude::*;
     use gst_rtsp_server::subclass::prelude::*;
 
     // In the imp submodule we include the actual implementation
@@ -160,7 +159,6 @@ mod media_factory {
 
 // Our custom media subclass that adds a custom attribute to the SDP returned by DESCRIBE
 mod media {
-    use glib::subclass::prelude::*;
     use gst_rtsp_server::subclass::prelude::*;
 
     // In the imp submodule we include the actual implementation
@@ -217,7 +215,6 @@ mod media {
 mod server {
     use super::*;
 
-    use glib::subclass::prelude::*;
     use gst_rtsp_server::subclass::prelude::*;
 
     // In the imp submodule we include the actual implementation
@@ -282,7 +279,6 @@ mod server {
 
 // Our custom RTSP client subclass.
 mod client {
-    use glib::subclass::prelude::*;
     use gst_rtsp_server::subclass::prelude::*;
 
     // In the imp submodule we include the actual implementation

examples/src/bin/subclass.rs

@@ -19,8 +19,6 @@ mod examples_common;
 mod fir_filter {
     use super::*;
 
-    use glib::subclass::prelude::*;
-    use gst::subclass::prelude::*;
     use gst_base::subclass::prelude::*;
 
     use byte_slice_cast::*;

examples/src/glupload.rs

@@ -5,7 +5,6 @@
 // {videotestsrc} - { glsinkbin }
 
 use gst::element_error;
-use gst::prelude::*;
 
 use gst_gl::prelude::*;
 

gstreamer-audio/src/subclass/audio_decoder.rs

@@ -1,6 +1,5 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-audio/src/subclass/audio_encoder.rs

@@ -1,6 +1,5 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-audio/src/subclass/audio_sink.rs

@@ -1,7 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::LoggableError;

gstreamer-audio/src/subclass/audio_src.rs

@@ -3,7 +3,6 @@
 use std::mem;
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::LoggableError;

gstreamer-base/src/subclass/aggregator.rs

@@ -1,7 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-base/src/subclass/aggregator_pad.rs

@@ -1,7 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-base/src/subclass/base_parse.rs

@@ -5,7 +5,6 @@ use std::mem;
 
 use crate::prelude::*;
 
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-base/src/subclass/base_sink.rs

@@ -1,7 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-base/src/subclass/base_src.rs

@@ -1,7 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-base/src/subclass/base_transform.rs

@@ -2,7 +2,6 @@
 
 use crate::prelude::*;
 
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::gst_warning;

gstreamer-check/src/harness.rs

@@ -1,7 +1,6 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use crate::TestClock;
-use glib::prelude::*;
 use glib::translate::*;
 use gst::prelude::*;
 use std::marker::PhantomData;

gstreamer-gl/src/subclass/gl_base_filter.rs

@@ -5,7 +5,6 @@ use crate::prelude::*;
 
 use glib::translate::*;
 
-use gst::subclass::prelude::*;
 use gst::{result_from_gboolean, Caps, LoggableError, CAT_RUST};
 use gst_base::subclass::prelude::*;
 

gstreamer-gl/src/subclass/gl_filter.rs

@@ -6,7 +6,6 @@ use crate::prelude::*;
 
 use glib::translate::*;
 
-use gst::subclass::prelude::*;
 use gst::{result_from_gboolean, Buffer, Caps, LoggableError, PadDirection, CAT_RUST};
 
 use crate::GLBaseFilter;

gstreamer-video/src/subclass/video_decoder.rs

@@ -1,7 +1,5 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
-use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-video/src/subclass/video_encoder.rs

@@ -1,7 +1,5 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
-use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
 use gst::subclass::prelude::*;

gstreamer-video/src/subclass/video_sink.rs

@@ -1,10 +1,8 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
 use glib::prelude::*;
-use glib::subclass::prelude::*;
 use glib::translate::*;
 
-use gst::subclass::prelude::*;
 use gst_base::subclass::prelude::*;
 
 use crate::VideoSink;

gstreamer-video/src/video_time_code.rs

@@ -1,6 +1,5 @@
 // Take a look at the license at the top of the repository in the LICENSE file.
 
-use glib::prelude::*;
 use glib::translate::*;
 use gst::prelude::*;
 use std::cmp;

gstreamer/src/element.rs

@@ -23,7 +23,6 @@ use crate::StateChangeError;
 use crate::StateChangeReturn;
 use crate::StateChangeSuccess;
 
-use glib::prelude::*;
 use glib::translate::*;
 
 use std::ffi::CStr;

gstreamer/src/message.rs

@@ -16,7 +16,6 @@ use std::num::NonZeroU32;
 use std::ops::Deref;
 use std::ptr;
 
-use glib::prelude::*;
 use glib::translate::{
     from_glib, from_glib_full, from_glib_none, mut_override, IntoGlib, ToGlibPtr,
 };

tutorials/src/bin/basic-tutorial-5.rs

@@ -6,7 +6,6 @@ mod tutorial5 {
     use gdk::prelude::*;
     use gtk::prelude::*;
 
-    use gst::prelude::*;
     use gst_video::prelude::*;
 
     use std::ops;