switching to generic icon for macOS

build/cmake/files.cmake

@@ -2312,7 +2312,6 @@ set(OSX_COMMON_SRC
     src/osx/carbon/cursor.cpp
     src/osx/carbon/fontdlg.cpp
     src/osx/carbon/gdiobj.cpp
-    src/osx/carbon/icon.cpp
     src/osx/carbon/app.cpp
     src/osx/carbon/control.cpp
     src/osx/carbon/dataobj.cpp
@@ -2345,6 +2344,7 @@ set(OSX_COMMON_SRC
     src/generic/prntdlgg.cpp
     src/generic/statusbr.cpp
     src/generic/textmeasure.cpp
+    src/generic/icon.cpp
     #TODO: </if>
 )
 
@@ -2387,7 +2387,6 @@ set(OSX_SHARED_HDR
     wx/osx/fontdlg.h
     wx/osx/frame.h
     wx/osx/gauge.h
-    wx/osx/icon.h
     wx/osx/imaglist.h
     wx/osx/listbox.h
     wx/osx/listctrl.h
@@ -2442,6 +2441,7 @@ set(OSX_SHARED_HDR
     wx/generic/prntdlgg.h
     wx/generic/statusbr.h
     wx/osx/appprogress.h
+    wx/generic/icon.h
 )
 
 set(OSX_COCOA_SRC
@@ -2525,7 +2525,6 @@ set(OSX_COCOA_HDR
 set(OSX_IPHONE_SRC
     ${OSX_COMMON_SRC}
     src/generic/regiong.cpp
-    src/generic/icon.cpp
     src/osx/cocoa/stdpaths.mm
     # iphone files
     src/osx/iphone/anybutton.mm