remove trailing ,

Author: Jason2866

platform.py

@@ -74,7 +74,7 @@ def install_tool(TOOL):
                     if not os.path.exists(join(TOOLS_PATH_DEFAULT, "tools", TOOL, "package.json")):
                         shutil.copyfile(TOOL_PACKAGE_PATH, join(TOOLS_PATH_DEFAULT, "tools", TOOL, "package.json"))
                     self.packages.pop(TOOL, None)
-                    if os.path.exists(TOOL_PATH,) and os.path.isdir(TOOL_PATH):
+                    if os.path.exists(TOOL_PATH) and os.path.isdir(TOOL_PATH):
                         try:
                             shutil.rmtree(TOOL_PATH)
                         except Exception as e: