Remove assertion around swizzling

Author: samedson

FirebasePerformance/Sources/Instrumentation/FPRSelectorInstrumentor.m

@@ -17,9 +17,6 @@
 #import "FirebasePerformance/Sources/Common/FPRDiagnostics.h"
 
 #import <GoogleUtilities/GULSwizzler.h>
-#ifdef FPR_UNSWIZZLE_AVAILABLE
-#import <GoogleUtilities/GULSwizzler+Unswizzle.h>
-#endif
 
 @implementation FPRSelectorInstrumentor {
   // The class this instrumentor operates on.
@@ -76,11 +73,8 @@ - (void)swizzle {
 
 - (void)unswizzle {
   _swizzled = NO;
-#ifdef FPR_UNSWIZZLE_AVAILABLE
-  [GULSwizzler unswizzleClass:_class selector:_selector isClassSelector:_isClassSelector];
-#else
-  NSAssert(NO, @"Unswizzling is disabled.");
-#endif
+  // For the SDK, we do not unswizzle, but this does run in unit tests,
+  // though it does not seem to have any effect
 }
 
 - (IMP)currentIMP {

Package.swift

@@ -884,7 +884,6 @@ let package = Package(
         .product(name: "GoogleDataTransport", package: "GoogleDataTransport"),
         .product(name: "GULEnvironment", package: "GoogleUtilities"),
         .product(name: "GULMethodSwizzler", package: "GoogleUtilities"),
-        .product(name: "GULSwizzlerTestHelpers", package: "GoogleUtilities"),
         .product(name: "GULUserDefaults", package: "GoogleUtilities"),
         .product(name: "nanopb", package: "nanopb"),
       ],
@@ -896,7 +895,6 @@ let package = Package(
         .define("PB_NO_PACKED_STRUCTS", to: "1"),
         .define("PB_ENABLE_MALLOC", to: "1"),
         .define("FIRPerformance_LIB_VERSION", to: firebaseVersion),
-        .define("FPR_UNSWIZZLE_AVAILABLE", to: "1"),
       ],
       linkerSettings: [
         .linkedFramework("MobileCoreServices", .when(platforms: [.iOS, .tvOS])),
@@ -924,6 +922,7 @@ let package = Package(
         .define("PB_FIELD_32BIT", to: "1"),
         .define("PB_NO_PACKED_STRUCTS", to: "1"),
         .define("PB_ENABLE_MALLOC", to: "1"),
+        .define("FPR_UNSWIZZLE_AVAILABLE", to: "1"),
       ]
     ),