Remove an unnecessary call to -[UIKeyboardImpl clearShiftState] after…

… rdar://118307508

https://bugs.webkit.org/show_bug.cgi?id=265002
rdar://118543047

Reviewed by Richard Robinson and Megan Gardner.

Remove this call to `-[UIKeyboardImpl clearShiftState]`, which is no longer needed after the changes
in rdar://118307508.

* Source/WebKit/Platform/spi/ios/UIKitSPI.h:
* Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm:
(-[WKContentView _selectionChanged]):

Canonical link: https://commits.webkit.org/270911@main

Source/WebKit/Platform/spi/ios/UIKitSPI.h

@@ -375,7 +375,6 @@ typedef struct CGSVGDocument *CGSVGDocumentRef;
 - (BOOL)handleKeyInputMethodCommandForCurrentEvent;
 - (void)addInputString:(NSString *)string withFlags:(NSUInteger)flags withInputManagerHint:(NSString *)hint;
 - (BOOL)autocorrectSpellingEnabled;
-- (void)clearShiftState;
 - (void)deleteFromInputWithFlags:(NSUInteger)flags;
 - (void)replaceText:(id)replacement;
 @property (nonatomic, readwrite, retain) UIResponder <UIKeyInput> *delegate;

Source/WebKit/UIProcess/ios/WKContentViewInteraction.mm

@@ -8449,8 +8449,6 @@ - (void)_selectionChanged
 
     if (_page->editorState().hasPostLayoutAndVisualData()) {
         _lastInsertedCharacterToOverrideCharacterBeforeSelection = std::nullopt;
-        if (!_usingGestureForSelection && _focusedElementInformation.autocapitalizeType == WebCore::AutocapitalizeType::Words)
-            [UIKeyboardImpl.sharedInstance clearShiftState];
 
         if (!_usingGestureForSelection && !_selectionChangeNestingLevel && _page->editorState().triggeredByAccessibilitySelectionChange) {
             // Force UIKit to reload all EditorState-based UI; in particular, this includes text candidates.