diff --git a/mozglue/baseprofiler/core/ProfileBuffer.cpp b/mozglue/baseprofiler/core/ProfileBuffer.cpp
index c7a0ca217ec1..7c1c56db3c90 100644
--- a/mozglue/baseprofiler/core/ProfileBuffer.cpp
+++ b/mozglue/baseprofiler/core/ProfileBuffer.cpp
@@ -19,13 +19,6 @@ ProfileBuffer::ProfileBuffer(ProfileChunkedBuffer& aBuffer)
   MOZ_ASSERT(mEntries.IsInSession());
 }
 
-ProfileBuffer::~ProfileBuffer() {
-  // Only ProfileBuffer controls this buffer, and it should be empty when there
-  // is no ProfileBuffer using it.
-  mEntries.ResetChunkManager();
-  MOZ_ASSERT(!mEntries.IsInSession());
-}
-
 /* static */
 ProfileBufferBlockIndex ProfileBuffer::AddEntry(
     ProfileChunkedBuffer& aProfileChunkedBuffer,
diff --git a/mozglue/baseprofiler/core/ProfileBuffer.h b/mozglue/baseprofiler/core/ProfileBuffer.h
index a32cc5c5a5b8..82b3a543e48c 100644
--- a/mozglue/baseprofiler/core/ProfileBuffer.h
+++ b/mozglue/baseprofiler/core/ProfileBuffer.h
@@ -27,8 +27,6 @@ class ProfileBuffer final {
   // manager.
   explicit ProfileBuffer(ProfileChunkedBuffer& aBuffer);
 
-  ~ProfileBuffer();
-
   bool IsThreadSafe() const { return mEntries.IsThreadSafe(); }
 
   // Add |aEntry| to the buffer, ignoring what kind of entry it is.
diff --git a/tools/profiler/core/ProfileBuffer.cpp b/tools/profiler/core/ProfileBuffer.cpp
index 853685881a3f..65e3335b1efe 100644
--- a/tools/profiler/core/ProfileBuffer.cpp
+++ b/tools/profiler/core/ProfileBuffer.cpp
@@ -21,13 +21,6 @@ ProfileBuffer::ProfileBuffer(ProfileChunkedBuffer& aBuffer)
   MOZ_ASSERT(mEntries.IsInSession());
 }
 
-ProfileBuffer::~ProfileBuffer() {
-  // Only ProfileBuffer controls this buffer, and it should be empty when there
-  // is no ProfileBuffer using it.
-  mEntries.ResetChunkManager();
-  MOZ_ASSERT(!mEntries.IsInSession());
-}
-
 /* static */
 ProfileBufferBlockIndex ProfileBuffer::AddEntry(
     ProfileChunkedBuffer& aProfileChunkedBuffer,
diff --git a/tools/profiler/core/ProfileBuffer.h b/tools/profiler/core/ProfileBuffer.h
index 747abe766b41..12ed1a4e5602 100644
--- a/tools/profiler/core/ProfileBuffer.h
+++ b/tools/profiler/core/ProfileBuffer.h
@@ -25,8 +25,6 @@ class ProfileBuffer final {
   // manager.
   explicit ProfileBuffer(mozilla::ProfileChunkedBuffer& aBuffer);
 
-  ~ProfileBuffer();
-
   bool IsThreadSafe() const { return mEntries.IsThreadSafe(); }
 
   // Add |aEntry| to the buffer, ignoring what kind of entry it is.