Remove deprecated VelocityTracker constructor (#98541)

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

@@ -144,12 +144,6 @@ class _PointAtTime {
 /// The quality of the velocity estimation will be better if more data points
 /// have been received.
 class VelocityTracker {
-  /// Create a new velocity tracker for a pointer [kind].
-  @Deprecated(
-    'Use VelocityTracker.withKind and provide the PointerDeviceKind associated with the gesture being tracked. '
-    'This feature was deprecated after v1.22.0-12.1.pre.',
-  )
-  VelocityTracker([this.kind = PointerDeviceKind.touch]);
 
   /// Create a new velocity tracker for a pointer [kind].
   VelocityTracker.withKind(this.kind);