tweaks: avoid fiddling with the keybuffer when it's not needed

Just change KEY_MOUSE directly into KEY_ENTER for a double click.

src/browser.c

@@ -138,9 +138,10 @@ char *do_browser(char *path)
 				/* If we selected the same filename as last time, fake a
 				 * press of the Enter key so that the file is read in. */
 				if (old_selected == selected)
-					unget_kbinput(KEY_ENTER, FALSE);
+					kbinput = KEY_ENTER;
 			}
 
+			if (kbinput == KEY_MOUSE)
 				continue;
 		}
 #endif /* ENABLE_MOUSE */

src/proto.h

@@ -608,7 +608,6 @@ void record_macro(void);
 void run_macro(void);
 size_t get_key_buffer_len(void);
 void put_back(int keycode);
-void unget_kbinput(int kbinput, bool metakey);
 #ifdef ENABLE_NANORC
 void implant(const char *string);
 #endif