Disable linking of the concurrency compatibility library for macCatalyst

It might not be there, and we don't need it for this test.

Author: DougGregor

test/Concurrency/Backdeploy/linking.swift

@@ -7,8 +7,8 @@
 // RUN: otool -L %t/linking_rpath | %FileCheck -check-prefix CHECK-RPATH %s
 // RUN: otool -L %t/linking_rpath_old | %FileCheck -check-prefix CHECK-RPATH %s
 
-// RUN: %target-build-swift -target x86_64-apple-ios15.0-macabi %s -o %t/linking_direct
-// RUN: %target-build-swift -target x86_64-apple-ios14.0-macabi %s -o %t/linking_rpath
+// RUN: %target-build-swift -disable-autolinking-runtime-compatibility-concurrency -target x86_64-apple-ios15.0-macabi %s -o %t/linking_direct
+// RUN: %target-build-swift -disable-autolinking-runtime-compatibility-concurrency -target x86_64-apple-ios14.0-macabi %s -o %t/linking_rpath
 
 // RUN: otool -L %t/linking_direct | %FileCheck -check-prefix CHECK-DIRECT %s
 // RUN: otool -L %t/linking_rpath | %FileCheck -check-prefix CHECK-RPATH %s