awstranslate: remove text accumulation feature

Users should now place a `textaccumulate` element in front of the
translator in order to achieve the previous behavior.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2350>

docs/plugins/gst_plugins_cache.json

@@ -1592,7 +1592,7 @@
                         "writable": true
                     },
                     "accumulator-lateness": {
-                        "blurb": "By how much to shift input timestamps forward for accumulating",
+                        "blurb": "By how much to shift input timestamps forward",
                         "conditionally-available": false,
                         "construct": false,
                         "construct-only": false,
@@ -18717,4 +18717,4 @@
         "tracers": {},
         "url": "https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs"
     }
-}
+}

net/aws/src/translate/mod.rs

@@ -11,21 +11,6 @@
  *
  * `awstranslate` is an element that can be used to translate text from one
  * language to another.
- *
- * When working with live data, the element will accumulate input text until
- * the deadline is reached, comparing the current running time with the running
- * time of the input items and the upstream latency.
- *
- * At this point the input items will be drained up until the first item ending
- * with a punctuation symbol.
- *
- * The accumulator will also be drained upon receiving `rstranscribe/final-transcript`
- * and `rstranscribe/speaker-change` custom events.
- *
- * When the user wants to use a very low / no latency upstream, and is willing to
- * accept desynchronization in order to build up long-enough sentences for translation,
- * they can set the #GstAwsTranslate:accumulator-lateness property to shift the input
- * timestamps forward when accumulating.
  */
 use gst::glib;
 use gst::prelude::*;