Delete duplicate code accidentally added during rebase
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 7895a65..f9e6031 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -1614,9 +1614,6 @@
       CmdArgs.push_back("-aarch64-enable-global-merge=true");
   }
 
-  // Enable/disable return address signing and indirect branch targets.
-  CollectARMPACBTIOptions(getToolChain(), Args, CmdArgs, true /*isAArch64*/);
-
   // Handle -msve_vector_bits=<bits>
   auto HandleVectorBits = [&](Arg *A, StringRef VScaleMin,
                               StringRef VScaleMax) {