Remove unnecessary debug print from NinePatch (#2639)

Author: csd4ni3l

arcade/gui/nine_patch.py

@@ -113,7 +113,6 @@ def _init_deferred(self):
         self._atlas = self._custom_atlas or self._ctx.default_atlas
         self._add_to_atlas(self.texture)
 
-        print("NinePatchTexture initialized")
         self._initialized = True
 
     def initialize(self) -> None: