build: remove unused patch

packages/mobile/patches/react-native-safe-area-view+0.14.9.patch

@@ -1,25 +0,0 @@
-diff --git a/node_modules/react-native-safe-area-view/index.js b/node_modules/react-native-safe-area-view/index.js
-index a21ff41..4a92960 100644
---- a/node_modules/react-native-safe-area-view/index.js
-+++ b/node_modules/react-native-safe-area-view/index.js
-@@ -5,6 +5,7 @@ import {
-   Platform,
-   StyleSheet,
-   Animated,
-+  NativeModules
- } from 'react-native';
- import hoistStatics from 'hoist-non-react-statics';
- 
-@@ -86,11 +87,7 @@ const statusBarHeight = isLandscape => {
-    * we do.
-    */
-   if (Platform.OS === 'android') {
--    if (global.Expo) {
--      return global.Expo.Constants.statusBarHeight;
--    } else {
--      return 0;
--    }
-+    return NativeModules.StatusBarHeight.statusBarHeight;
-   }
- 
-   if (isIPhoneX) {