Fix typo to trigger build (#81325)

packages/flutter/lib/src/gestures/pointer_signal_resolver.dart

@@ -23,7 +23,7 @@ bool _isSameEvent(PointerSignalEvent event1, PointerSignalEvent event2) {
 /// these signal events were to handle them directly, it would cause issues
 /// such as multiple [Scrollable] widgets in the widget hierarchy responding
 /// to the same mouse wheel event. Using this class, these events will only
-/// be dispatched to the the first registered handler, which will in turn
+/// be dispatched to the first registered handler, which will in turn
 /// correspond to the widget that's deepest in the widget hierarchy.
 ///
 /// To use this class, objects should register their event handler like so:

packages/flutter/lib/src/material/flexible_space_bar.dart

@@ -210,7 +210,7 @@ class FlexibleSpaceBar extends StatefulWidget {
   /// height of the resulting [FlexibleSpaceBar] when fully expanded.
   /// `currentExtent` sets the scale of the [FlexibleSpaceBar.background] and
   /// [FlexibleSpaceBar.title] widgets of [FlexibleSpaceBar] upon
-  /// initialization. `scrolledUnder` is true if the the [FlexibleSpaceBar]
+  /// initialization. `scrolledUnder` is true if the [FlexibleSpaceBar]
   /// overlaps the app's primary scrollable, false if it does not, and null
   /// if the caller has not determined as much.
   /// See also: