Merge pull request #1577 from apollographql/rm/unused

Remove now-unused `Locking.swift` file

Author: designatednerd

Apollo.xcodeproj/project.pbxproj

@@ -223,7 +223,6 @@
 		9FA6ABD61EC0AA4D000017BE /* Apollo.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9FC750441D2A532C00458D91 /* Apollo.framework */; };
 		9FA6F3681E65DF4700BF8D73 /* GraphQLResultAccumulator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FA6F3671E65DF4700BF8D73 /* GraphQLResultAccumulator.swift */; };
 		9FACA9BE1F42E67200AE2DBD /* Apollo.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9FC750441D2A532C00458D91 /* Apollo.framework */; };
-		9FADC84A1E6B0B2300C677E6 /* Locking.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FADC8491E6B0B2300C677E6 /* Locking.swift */; };
 		9FBE0D4025407B64002ED0B1 /* AsyncResultObserver.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FBE0D3F25407B64002ED0B1 /* AsyncResultObserver.swift */; };
 		9FC2333D1E66BBF7001E4541 /* GraphQLDependencyTracker.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FC2333C1E66BBF7001E4541 /* GraphQLDependencyTracker.swift */; };
 		9FC4B9201D2A6F8D0046A641 /* JSON.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9FC4B91F1D2A6F8D0046A641 /* JSON.swift */; };
@@ -763,7 +762,6 @@
 		9FA6ABCB1EC0A9F7000017BE /* WatchQueryTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = WatchQueryTests.swift; sourceTree = "<group>"; };
 		9FA6F3671E65DF4700BF8D73 /* GraphQLResultAccumulator.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GraphQLResultAccumulator.swift; sourceTree = "<group>"; };
 		9FACA9C61F42E67200AE2DBD /* GitHubAPI.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = GitHubAPI.framework; sourceTree = BUILT_PRODUCTS_DIR; };
-		9FADC8491E6B0B2300C677E6 /* Locking.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Locking.swift; sourceTree = "<group>"; };
 		9FADC84E1E6B865E00C677E6 /* DataLoader.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DataLoader.swift; sourceTree = "<group>"; };
 		9FADC8531E6B86D900C677E6 /* DataLoaderTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DataLoaderTests.swift; sourceTree = "<group>"; };
 		9FBE0D3F25407B64002ED0B1 /* AsyncResultObserver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AsyncResultObserver.swift; sourceTree = "<group>"; };
@@ -1664,7 +1662,6 @@
 				9BA3130D2302BEA5007B7FC5 /* DispatchQueue+Optional.swift */,
 				9FEC15B31E681DAD00D461B4 /* GroupedSequence.swift */,
 				9F578D8F1D8D2CB300C0EA36 /* HTTPURLResponse+Helpers.swift */,
-				9FADC8491E6B0B2300C677E6 /* Locking.swift */,
 				9F33D6A32566475600A1543F /* PossiblyDeferred.swift */,
 			);
 			name = Utilities;
@@ -2585,7 +2582,6 @@
 				9B260C0A245A532500562176 /* LegacyParsingInterceptor.swift in Sources */,
 				9B96500C24BE7239003C29C0 /* LegacyCacheReadInterceptor.swift in Sources */,
 				9F8F334C229044A200C0E83B /* Decoding.swift in Sources */,
-				9FADC84A1E6B0B2300C677E6 /* Locking.swift in Sources */,
 				9F295E381E277B2A00A24949 /* GraphQLResultNormalizer.swift in Sources */,
 				9F8E0BE325668559000D9FA5 /* PossiblyDeferred.swift in Sources */,
 				9F86B68B1E6438D700B885FF /* GraphQLSelectionSetMapper.swift in Sources */,