removed C-[ from source and man page

dmenu.1

@@ -41,7 +41,7 @@ Confirm selection and quit (print the selected item to stdout).
 Shift-Return
 Confirm selection and quit (print the text in the input field to stdout).
 .TP
-Escape (Control-[)
+Escape
 Quit without selecting an item.
 .TP
 Backspace (Control-h)

main.c

@@ -174,16 +174,12 @@ kpress(XKeyEvent * e)
 		case XK_h:
 			ksym = XK_BackSpace;
 			break;
-		case XK_U:
 		case XK_u:
 			text[0] = 0;
 			match(text);
 			drawmenu();
 			return;
 			break;
-		case XK_bracketleft:
-			ksym = XK_Escape;
-			break;
 		}
 	}
 	switch(ksym) {