Remove config

Samples/Swift/DaysUntilBirthday/DaysUntilBirthday.xcodeproj/project.pbxproj

@@ -69,7 +69,6 @@
 		73508EC52811BD9C00ED7FB7 /* DaysUntilBirthdayUITests(iOS).xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = "DaysUntilBirthdayUITests(iOS).xctest"; sourceTree = BUILT_PRODUCTS_DIR; };
 		73508EC72811BD9C00ED7FB7 /* DaysUntilBirthdayUITests_iOS_.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DaysUntilBirthdayUITests_iOS_.swift; sourceTree = "<group>"; };
 		73508ED2281337AE00ED7FB7 /* DaysUntilBirthdayUITests-iOS--Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist; path = "DaysUntilBirthdayUITests-iOS--Info.plist"; sourceTree = SOURCE_ROOT; };
-		73508ED32813391700ED7FB7 /* Credentials.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Credentials.xcconfig; sourceTree = "<group>"; };
 		73508ED428134C7300ED7FB7 /* Credential.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Credential.swift; sourceTree = "<group>"; };
 		736F49B9270E05E200580053 /* BirthdayLoader.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BirthdayLoader.swift; sourceTree = "<group>"; };
 		736F49BB270E102C00580053 /* BirthdayViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BirthdayViewModel.swift; sourceTree = "<group>"; };
@@ -566,7 +565,6 @@
 		};
 		7345AD0F2703D9480020AFB1 /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 73508ED32813391700ED7FB7 /* Credentials.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
@@ -609,7 +607,6 @@
 		};
 		73508ECD2811BD9C00ED7FB7 /* Debug */ = {
 			isa = XCBuildConfiguration;
-			baseConfigurationReference = 73508ED32813391700ED7FB7 /* Credentials.xcconfig */;
 			buildSettings = {
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
 				CODE_SIGN_STYLE = Automatic;