Disabled Code Coverage

Because of Carthage/Carthage#2056

Author: cglarsen

KeyboardHelper.xcodeproj/xcshareddata/xcschemes/KeyboardHelper.xcscheme

@@ -27,7 +27,7 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES"
-      codeCoverageEnabled = "YES">
+      codeCoverageEnabled = "NO">
       <Testables>
          <TestableReference
             skipped = "NO">