Removed unused translation key

src/PixiEditor/Data/Localization/Languages/en.json

@@ -988,7 +988,6 @@
   "DOWNLOAD_UPDATE": "Download",
   "DOWNLOADING_UPDATE": "Downloading update...",
   "CHECKING_FOR_UPDATES": "Checking for updates...",
-  "PAINT_SHAPE_SETTING": "Brush shape",
   "BOOL_OPERATION_NODE": "Boolean Operation",
   "FIRST_SHAPE": "First shape",
   "SECOND_SHAPE": "Second shape",