diff --git a/src/AudacityApp.cpp b/src/AudacityApp.cpp
index 1517ab56a..802537476 100644
--- a/src/AudacityApp.cpp
+++ b/src/AudacityApp.cpp
@@ -651,54 +651,12 @@ public:
 };
 
 #if defined(__WXMAC__)
-// This should be removed when Lame and FFmpeg support is converted
-// from loadable libraries to commands.
-//
-// The purpose of this is to give the user more control over where libraries
-// such as Lame and FFmpeg get loaded from.
-//
-// Since absolute pathnames are used when loading these libraries, the normal search
-// path would be DYLD_LIBRARY_PATH, absolute path, DYLD_FALLBACK_LIBRARY_PATH.  This
-// means that DYLD_LIBRARY_PATH can override what the user actually wants.
-//
-// So, we simply clear DYLD_LIBRARY_PATH to allow the users choice to be the first
-// one tried.
+
 IMPLEMENT_APP_NO_MAIN(AudacityApp)
 IMPLEMENT_WX_THEME_SUPPORT
 
 int main(int argc, char *argv[])
 {
-   bool doCrash = false;
-
-#ifdef FIX_BUG1567
-   doCrash = AudacityApp::IsSierraOrLater();
-#endif
-
-   bool doExec = !doCrash && getenv("DYLD_LIBRARY_PATH");
-   unsetenv("DYLD_LIBRARY_PATH");
-
-   extern char **environ;
-   
-#ifdef FIX_BUG1567
-   const char *var_name = "_NO_CRASH";
-   if ( doCrash && !( getenv( var_name ) ) ) {
-      setenv(var_name, "1", TRUE);
-      // Bizarre fix for Bug1567
-      // Crashing one Audacity and immediately starting another avoids intermittent
-      // failures to load libraries on Sierra
-      if ( fork() )
-         // The original process crashes at once
-         raise(SIGTERM);
-
-      // Child process can't proceed until doing this:
-      execve(argv[0], argv, environ);
-   }
-   else
-#else
-      if (doExec)
-         execve(argv[0], argv, environ);
-#endif
-
    wxDISABLE_DEBUG_SUPPORT();
 
    return wxEntry(argc, argv);
@@ -1542,12 +1500,6 @@ bool AudacityApp::OnInit()
       temporarywindow.SetTitle(_("Audacity is starting up..."));
       SetTopWindow(&temporarywindow);
 
-#ifdef FIX_BUG1567
-      // Without this, splash screen may be hidden under other programs.
-      if (IsSierraOrLater())
-         MacActivateApp();
-#endif
-
       // ANSWER-ME: Why is YieldFor needed at all?
       //wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI|wxEVT_CATEGORY_USER_INPUT|wxEVT_CATEGORY_UNKNOWN);
       wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
diff --git a/src/AudacityApp.h b/src/AudacityApp.h
index edf1961f7..dafca471b 100644
--- a/src/AudacityApp.h
+++ b/src/AudacityApp.h
@@ -164,12 +164,7 @@ class AudacityApp final : public wxApp {
 
 #ifdef __WXMAC__
 
-   #if ! defined(__WXDEBUG__)
-   #define FIX_BUG1567
-   #endif
-
    void MacActivateApp();
-   static bool IsSierraOrLater();
 
 #endif
 
diff --git a/src/MenusMac.cpp b/src/MenusMac.cpp
index a1b091eca..3b74e0fe4 100644
--- a/src/MenusMac.cpp
+++ b/src/MenusMac.cpp
@@ -92,9 +92,3 @@ void AudacityApp::MacActivateApp()
    if ( [app respondsToSelector:@selector(activateIgnoringOtherApps:)] )
       [app activateIgnoringOtherApps:YES];
 }
-
-bool AudacityApp::IsSierraOrLater()
-{
-   auto number = kCFCoreFoundationVersionNumber;
-   return number >= 1348.1;
-}