TF-1694 Remove fluttertoast library because not used

(cherry picked from commit 5836725f90dc215db71917b45ef164437d5c9aef)

ios/Podfile.lock

@@ -106,9 +106,6 @@ PODS:
     - Flutter
   - flutter_native_splash (0.0.1):
     - Flutter
-  - fluttertoast (0.0.2):
-    - Flutter
-    - Toast
   - GoogleDataTransport (9.2.1):
     - GoogleUtilities/Environment (~> 7.7)
     - nanopb (< 2.30910.0, >= 2.30908.0)
@@ -171,7 +168,6 @@ PODS:
     - Flutter
     - FlutterMacOS
   - SwiftyGif (5.4.4)
-  - Toast (4.0.0)
   - url_launcher_ios (0.0.1):
     - Flutter
 
@@ -192,7 +188,6 @@ DEPENDENCIES:
   - flutter_keyboard_visibility (from `.symlinks/plugins/flutter_keyboard_visibility/ios`)
   - flutter_local_notifications (from `.symlinks/plugins/flutter_local_notifications/ios`)
   - flutter_native_splash (from `.symlinks/plugins/flutter_native_splash/ios`)
-  - fluttertoast (from `.symlinks/plugins/fluttertoast/ios`)
   - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
   - path_provider_foundation (from `.symlinks/plugins/path_provider_foundation/ios`)
   - permission_handler_apple (from `.symlinks/plugins/permission_handler_apple/ios`)
@@ -222,7 +217,6 @@ SPEC REPOS:
     - SDWebImage
     - SDWebImageWebPCoder
     - SwiftyGif
-    - Toast
 
 EXTERNAL SOURCES:
   better_open_file:
@@ -257,8 +251,6 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/flutter_local_notifications/ios"
   flutter_native_splash:
     :path: ".symlinks/plugins/flutter_native_splash/ios"
-  fluttertoast:
-    :path: ".symlinks/plugins/fluttertoast/ios"
   package_info_plus:
     :path: ".symlinks/plugins/package_info_plus/ios"
   path_provider_foundation:
@@ -299,7 +291,6 @@ SPEC CHECKSUMS:
   flutter_keyboard_visibility: 0339d06371254c3eb25eeb90ba8d17dca8f9c069
   flutter_local_notifications: 0c0b1ae97e741e1521e4c1629a459d04b9aec743
   flutter_native_splash: 52501b97d1c0a5f898d687f1646226c1f93c56ef
-  fluttertoast: eb263d302cc92e04176c053d2385237e9f43fad0
   GoogleDataTransport: ea169759df570f4e37bdee1623ec32a7e64e67c4
   GoogleUtilities: c2bdc4cf2ce786c4d2e6b3bcfd599a25ca78f06f
   libwebp: f62cb61d0a484ba548448a4bd52aabf150ff6eef
@@ -317,7 +308,6 @@ SPEC CHECKSUMS:
   share_plus: 056a1e8ac890df3e33cb503afffaf1e9b4fbae68
   shared_preferences_foundation: 986fc17f3d3251412d18b0265f9c64113a8c2472
   SwiftyGif: 93a1cc87bf3a51916001cf8f3d63835fb64c819f
-  Toast: 91b396c56ee72a5790816f40d3a94dd357abc196
   url_launcher_ios: 08a3dfac5fb39e8759aeb0abbd5d9480f30fc8b4
 
 PODFILE CHECKSUM: e209bf81fb4facf3f68c43dbffa0b2d05ff63db0