remove duplicate warning "UNUSED_VARIABLE"

Florian Hirschmann · Florian Hirschmann · commit 89b37a4e8f38 · 2015-08-27T13:29:23.000+02:00
diff --git a/Configurations/Shared/Warnings.xcconfig b/Configurations/Shared/Warnings.xcconfig
@@ -22,7 +22,6 @@ GCC_WARN_UNUSED_VALUE = YES
 GCC_WARN_UNUSED_VARIABLE = YES
 GCC_WARN_ALLOW_INCOMPLETE_PROTOCOL = YES
 GCC_WARN_UNDECLARED_SELECTOR = YES
-GCC_WARN_UNUSED_VARIABLE = YES
 GCC_WARN_64_TO_32_BIT_CONVERSION = YES
 GCC_WARN_UNINITIALIZED_AUTOS = YES
 
