macos: version 10.7 long no longer supported

app/display/gimpimagewindow.c

@@ -94,10 +94,6 @@
 /* Whether the window's maximized or not */
 #define GIMP_IMAGE_WINDOW_MAXIMIZED        "maximized"
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
-#define NSWindowCollectionBehaviorFullScreenAuxiliary (1 << 8)
-#endif
-
 
 enum
 {

libgimpwidgets/gimppickbutton-quartz.c

@@ -33,22 +33,6 @@
 #include <ApplicationServices/ApplicationServices.h>
 #endif
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
-@interface NSWindow (GIMPExt)
-- (NSRect) convertRectToScreen: (NSRect)aRect;
-@end
-@implementation NSWindow (GIMPExt)
-- (NSRect) convertRectToScreen: (NSRect)aRect
-{
-  NSRect result = aRect;
-  NSPoint origin = result.origin;
-  result.origin = [self convertBaseToScreen:origin];
-  return result;
-}
-@end
-#endif
-
-
 @interface GimpPickWindowController : NSObject
 {
   GimpPickButton *button;