FIX: Remove runloop execution while waiting for stdin

This would slow down the typing at a command prompt while waiting
for stdin from the programs because each character would bounce for
0.01 seconds adding up to noticeable slowdown when piping in
characters from an external source.

Author: greglucas

src/_macosx.m

@@ -89,9 +89,6 @@ static int wait_for_stdin() {
                 if (!event) { break; }
                 [NSApp sendEvent: event];
             }
-            // We need to run the run loop for a short time to allow the
-            // events to be processed and keep flushing them while we wait for stdin
-            [[NSRunLoop currentRunLoop] runUntilDate: [NSDate dateWithTimeIntervalSinceNow: 0.01]];
         }
         // Remove the input handler as an observer
         [[NSNotificationCenter defaultCenter] removeObserver: stdinHandle];