fix some trailing semicolons

Source/NSAccessibilityCustomRotor.m

@@ -90,7 +90,7 @@
   return nil;
 }
 
-- (id<NSAccessibilityElement>) targetElement;
+- (id<NSAccessibilityElement>) targetElement
 {
   return nil;
 }

Source/NSCollectionView.m

@@ -1987,7 +1987,7 @@ static NSString *_placeholderItem = nil;
   return _allowsEmptySelection;
 }
 
-- (void) setAllowsEmptySelection: (BOOL)flag;
+- (void) setAllowsEmptySelection: (BOOL)flag
 {
   _allowsEmptySelection = flag;
 }

Source/NSCollectionViewGridLayout.m

@@ -146,7 +146,7 @@
   _maximumNumberOfRows = maxRows;
 }
 
-- (NSUInteger) maximumNumberOfRows;
+- (NSUInteger) maximumNumberOfRows
 {
   return _maximumNumberOfRows;
 }

Source/NSFontDescriptor.m

@@ -176,7 +176,7 @@
   return self;
 }
 	
-- (void) dealloc;
+- (void) dealloc
 {
   RELEASE(_attributes);
   [super dealloc];

Source/NSTextFinder.m

@@ -134,7 +134,7 @@
                              withTextView: nil];
 }
 
-- (void)cancelFindIndicator;
+- (void)cancelFindIndicator
 {
 }