diff --git a/FirebasePerformance/Sources/Instrumentation/FPRSelectorInstrumentor.m b/FirebasePerformance/Sources/Instrumentation/FPRSelectorInstrumentor.m
index 0f474e5436a..63fe708d223 100644
--- a/FirebasePerformance/Sources/Instrumentation/FPRSelectorInstrumentor.m
+++ b/FirebasePerformance/Sources/Instrumentation/FPRSelectorInstrumentor.m
@@ -17,9 +17,6 @@
 #import "FirebasePerformance/Sources/Common/FPRDiagnostics.h"
 
 #import <GoogleUtilities/GULSwizzler.h>
-#ifdef 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 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 {
diff --git a/FirebasePerformance/Tests/Unit/FPRClassInstrumentorTest.m b/FirebasePerformance/Tests/Unit/FPRClassInstrumentorTest.m
index 5e07dd9a3ea..0b72ea5cd9a 100644
--- a/FirebasePerformance/Tests/Unit/FPRClassInstrumentorTest.m
+++ b/FirebasePerformance/Tests/Unit/FPRClassInstrumentorTest.m
@@ -57,8 +57,6 @@ - (void)testCannotInstrumentSameSelectorTwice {
 
 #pragma mark - Unswizzle based tests
 
-#if !SWIFT_PACKAGE
-
 /** Tests swizzling an instance selector. */
 - (void)testSwizzleInstanceSelector {
   FPRClassInstrumentor *classInstrumentor =
@@ -158,6 +156,4 @@ - (void)testVoidReturnClassSelector {
   [classInstrumentor unswizzle];
 }
 
-#endif  // SWIFT_PACKAGE
-
 @end
diff --git a/FirebasePerformance/Tests/Unit/FPRInstrumentTest.m b/FirebasePerformance/Tests/Unit/FPRInstrumentTest.m
index 245d0ac0d47..82a2af6f64b 100644
--- a/FirebasePerformance/Tests/Unit/FPRInstrumentTest.m
+++ b/FirebasePerformance/Tests/Unit/FPRInstrumentTest.m
@@ -65,8 +65,6 @@ - (void)testRegisterAlreadyRegisteredClassInstrumentor {
 
 #pragma mark - Unswizzle based tests
 
-#if !SWIFT_PACKAGE
-
 - (void)testDeregisterInstrumentors {
   FPRInstrument *instrument = [[FPRInstrument alloc] init];
   FPRClassInstrumentor *classInstrumentor =
@@ -86,6 +84,4 @@ - (void)testDeregisterInstrumentors {
   [classInstrumentor unswizzle];
 }
 
-#endif  // SWIFT_PACKAGE
-
 @end
diff --git a/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLConnectionInstrumentTest.m b/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLConnectionInstrumentTest.m
index bb3e3520f39..c6c9f65bf2b 100644
--- a/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLConnectionInstrumentTest.m
+++ b/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLConnectionInstrumentTest.m
@@ -14,8 +14,6 @@
 
 #pragma mark - Unswizzle based tests
 
-#if !SWIFT_PACKAGE
-
 #import "FirebasePerformance/Tests/Unit/Instruments/FPRNSURLConnectionInstrumentTestDelegates.h"
 
 #import <XCTest/XCTest.h>
@@ -519,5 +517,3 @@ - (void)testDownloadDelegateCompletionAPIGetsCalledEvenIfDataDelegateIsImplement
 }
 
 @end
-
-#endif  // SWIFT_PACKAGE
diff --git a/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLSessionInstrumentTest.m b/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLSessionInstrumentTest.m
index ffffbe17c17..33866ad20e4 100644
--- a/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLSessionInstrumentTest.m
+++ b/FirebasePerformance/Tests/Unit/Instruments/FPRNSURLSessionInstrumentTest.m
@@ -14,8 +14,6 @@
 
 #pragma mark - Unswizzle based tests
 
-#ifndef SWIFT_PACKAGE
-
 #import "FirebasePerformance/Tests/Unit/Instruments/FPRNSURLSessionInstrumentTestDelegates.h"
 
 #import <XCTest/XCTest.h>
@@ -836,5 +834,3 @@ - (void)testMutableRequestURLs {
 }
 
 @end
-
-#endif  // SWIFT_PACKAGE
diff --git a/FirebasePerformance/Tests/Unit/Instruments/FPRUIViewControllerInstrumentTest.m b/FirebasePerformance/Tests/Unit/Instruments/FPRUIViewControllerInstrumentTest.m
index 005818f63a0..fba807116cf 100644
--- a/FirebasePerformance/Tests/Unit/Instruments/FPRUIViewControllerInstrumentTest.m
+++ b/FirebasePerformance/Tests/Unit/Instruments/FPRUIViewControllerInstrumentTest.m
@@ -14,8 +14,6 @@
 
 #pragma mark - Unswizzle based tests
 
-#if !SWIFT_PACKAGE
-
 #import "FirebasePerformance/Sources/Instrumentation/UIKit/FPRUIViewControllerInstrument.h"
 
 #import <XCTest/XCTest.h>
@@ -54,6 +52,8 @@ - (void)setUp {
   originalViewDidDisappearInvoked = NO;
 }
 
+#if !SWIFT_PACKAGE
+
 /** Tests that the viewControllerDidAppear: of the FPRScreenTraceTracker sharedInstance is invoked
  *  when a UIViewController's viewDidAppear: is invoked.
  */
@@ -77,6 +77,8 @@ - (void)testViewDidAppearInvokesViewControllerDidAppearOnScreenTraceTracker {
   [[testViewController view] removeFromSuperview];
 }
 
+#endif  // SWIFT_PACKAGE
+
 /** Tests that the viewControllerDidAppear: of the FPRScreenTraceTracker sharedInstance is invoked
  *  when a UIViewController's viewDidAppear: is invoked.
  */
@@ -172,5 +174,3 @@ - (void)testViewDidAppearInvokesPreviousViewDidDisappear {
 }
 
 @end
-
-#endif  // SWIFT_PACKAGE