Removing stray reference to QuartzCore.framework

Example/AFNetworking Example.xcodeproj/project.pbxproj

@@ -58,7 +58,6 @@
 		F874B5D613E0AA6500B28E3E /* AFRestClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; lineEnding = 0; name = AFRestClient.h; path = ../AFNetworking/AFRestClient.h; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.objcpp; };
 		F874B5D713E0AA6500B28E3E /* UIImage+AFNetworking.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = "UIImage+AFNetworking.h"; path = "../AFNetworking/UIImage+AFNetworking.h"; sourceTree = "<group>"; };
 		F874B5D813E0AA6500B28E3E /* UIImageView+AFNetworking.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = "UIImageView+AFNetworking.h"; path = "../AFNetworking/UIImageView+AFNetworking.h"; sourceTree = "<group>"; };
-		F8870C3D1424409800BCD863 /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuartzCore.framework; path = System/Library/Frameworks/QuartzCore.framework; sourceTree = SDKROOT; };
 		F8D25D101396A9C400CF3BD6 /* JSONKit.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = JSONKit.h; sourceTree = "<group>"; };
 		F8D25D111396A9C400CF3BD6 /* JSONKit.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = JSONKit.m; sourceTree = "<group>"; };
 		F8D25D131396A9C400CF3BD6 /* TTTLocationFormatter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = TTTLocationFormatter.h; sourceTree = "<group>"; };
@@ -175,7 +174,6 @@
 		F8E469551395739C00DB05C8 = {
 			isa = PBXGroup;
 			children = (
-				F8870C3D1424409800BCD863 /* QuartzCore.framework */,
 				F8E469B71395759C00DB05C8 /* Networking Extensions */,
 				F8E4696A1395739D00DB05C8 /* Classes */,
 				F8E469ED1395812A00DB05C8 /* Images */,