Merge pull request #827 from Quick/remove-macos-VALID_ARCHS

Support ARM based Macs (Apple Silicon)

Author: ikesyo

Nimble.xcodeproj/project.pbxproj

@@ -2195,7 +2195,6 @@
 				PRODUCT_NAME = Nimble;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				VALID_ARCHS = x86_64;
 			};
 			name = Debug;
 		};
@@ -2232,7 +2231,6 @@
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALID_ARCHS = x86_64;
 			};
 			name = Release;
 		};
@@ -2253,7 +2251,6 @@
 				PRODUCT_NAME = NimbleTests;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				VALID_ARCHS = x86_64;
 			};
 			name = Debug;
 		};
@@ -2271,7 +2268,6 @@
 				PRODUCT_NAME = NimbleTests;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				VALID_ARCHS = x86_64;
 			};
 			name = Release;
 		};