Remove unused deps

example/pubspec.lock

@@ -1,13 +1,6 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  animations:
-    dependency: "direct main"
-    description:
-      name: animations
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.2"
   async:
     dependency: transitive
     description:
@@ -322,13 +315,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.99"
-  sliver_tools:
-    dependency: "direct main"
-    description:
-      name: sliver_tools
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.2.5"
   source_span:
     dependency: transitive
     description:
@@ -447,7 +433,7 @@ packages:
       name: win32
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.1"
+    version: "2.5.1"
   xdg_directories:
     dependency: transitive
     description:

example/pubspec.yaml

@@ -7,11 +7,6 @@ environment:
   flutter: '>=2.10.0'
 
 dependencies:
-
-  # Prebuilt transition animations, by Google (flutter.dev).
-  # https://pub.dev/packages/animations
-  animations: ^2.0.2
-
   # Adds the Cupertino Icons font to your application. Used by the
   # CupertinoIcons class for iOS style icons, by Google flutter.dev.
   # https://pub.dev/packages/cupertino_icons
@@ -56,10 +51,6 @@ dependencies:
   # https://pub.dev/packages/shared_preferences
   shared_preferences: ^2.0.13
 
-  # Useful sliver tools, by pietervanloon.com.
-  # https://pub.dev/packages/sliver_tools
-  sliver_tools: ^0.2.5
-
   # A class for parsing strings using a sequence of patterns.
   # By the Dart team, tools.dart.dev
   # https://pub.dev/packages/string_scanner