'WITH_ENCRYPTION' tests compiler flag defined in Package.swift

Author: danielrbrowne

Package.swift

@@ -28,7 +28,8 @@ let package = Package(
             name: "PusherSwiftWithEncryptionTests",
             dependencies: ["PusherSwiftWithEncryption"],
             path: "Tests",
-            exclude: ["Unit/PusherSwift-Only"]
+            exclude: ["Unit/PusherSwift-Only"],
+            swiftSettings: [.define("WITH_ENCRYPTION")]
         )
     ],
     swiftLanguageVersions: [.v5]

PusherSwift.xcodeproj/project.pbxproj

@@ -1317,7 +1317,6 @@
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
-				OTHER_SWIFT_FLAGS = "-DWITH_ENCRYPTION";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.pusher.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = "";
@@ -1362,7 +1361,6 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				MTL_ENABLE_DEBUG_INFO = NO;
-				OTHER_SWIFT_FLAGS = "-DWITH_ENCRYPTION";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.pusher.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = "";