libgo: delete runtime/go-typedesc-equal.c

Fixes golang/go#32381.

Change-Id: I744103eda07665911d2ff33d2d05325a9ecb406b
Reviewed-on: https://go-review.googlesource.com/c/gollvm/+/180017
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Than McIntosh <thanm@google.com>
diff --git a/libgo/CMakeLists.txt b/libgo/CMakeLists.txt
index f2643a8..c60b033 100644
--- a/libgo/CMakeLists.txt
+++ b/libgo/CMakeLists.txt
@@ -412,7 +412,6 @@
   "runtime/go-setenv.c"
   "runtime/go-signal.c"
   "runtime/go-strslice.c"
-  "runtime/go-typedesc-equal.c"
   "runtime/go-unsafe-pointer.c"
   "runtime/go-unsetenv.c"
   "runtime/go-unwind.c"