StartWB: Remove superfluous paranthesis [skip ci]

src/Mod/Start/StartPage/StartPage.py

@@ -234,7 +234,7 @@ def buildCard(filename,method,arg=None):
     """builds an html <li> element representing a file. 
     method is a script + a keyword, for ex. url.py?key="""
 
-    result = ("")
+    result = ""
     if os.path.exists(filename) and isOpenableByFreeCAD(filename):
         basename = os.path.basename(filename)
         if not arg: