Remove extraneous whitespace

Author: jeremypw

src/MainWindow.vala

@@ -241,7 +241,6 @@ namespace Scratch {
             action_accelerators.set (ACTION_NEXT_TAB, "<Control>Page_Down");
             action_accelerators.set (ACTION_CLOSE_TAB + "::", "<Control>w");
             action_accelerators.set (ACTION_CLOSE_OTHER_TABS, "<Shift><Control>w");
-
             action_accelerators.set (ACTION_PREVIOUS_TAB, "<Control><Shift>Tab");
             action_accelerators.set (ACTION_PREVIOUS_TAB, "<Control>Page_Up");
             action_accelerators.set (ACTION_CLEAR_LINES, "<Control>K"); //Geany