changed watchOS deployment target

Author: dileping

ExecutionContext.xcodeproj/project.pbxproj

@@ -1040,7 +1040,7 @@
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 4;
-				WATCHOS_DEPLOYMENT_TARGET = 2.1;
+				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
 			name = Debug;
 		};
@@ -1065,7 +1065,7 @@
 				SKIP_INSTALL = YES;
 				TARGETED_DEVICE_FAMILY = 4;
 				VALIDATE_PRODUCT = YES;
-				WATCHOS_DEPLOYMENT_TARGET = 2.1;
+				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
 			name = Release;
 		};