Disable code coverage on release builds

Reachability.xcodeproj/project.pbxproj

@@ -659,6 +659,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO;
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				CLANG_ENABLE_CODE_COVERAGE = NO;
 				CODE_SIGN_IDENTITY = "";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COMBINE_HIDPI_IMAGES = YES;
@@ -778,6 +779,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO;
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				CLANG_ENABLE_CODE_COVERAGE = NO;
 				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "iPhone Developer";
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = "";
@@ -924,6 +926,7 @@
 			buildSettings = {
 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO;
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				CLANG_ENABLE_CODE_COVERAGE = NO;
 				CLANG_ENABLE_MODULES = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				DEFINES_MODULE = YES;