Remove braces for Python sample

Suggested by community member in an un-merged PR.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

sample-functions/BaseFunctions/python/handler.py

@@ -6,6 +6,6 @@ def get_stdin():
         buf = buf + line
     return buf
 
-if(__name__ == "__main__"):
+if __name__ == "__main__":
     st = get_stdin()
     print(st)