GUACAMOLE-723: Padding adjustment should be made only to the connection select menu.

guacamole/src/main/webapp/app/client/styles/connection-select-menu.css

@@ -18,6 +18,7 @@
  */
 
 .connection-select-menu {
+    padding: 0;
     min-width: 0;
 }
 

guacamole/src/main/webapp/app/client/styles/guac-menu.css

@@ -65,10 +65,6 @@
     margin-top: 1em;
 }
 
-#guac-menu .header h2 {
-    padding: 0;
-}
-
 #guac-menu #mouse-settings .choice {
     text-align: center;
 }