tsan: don't include tsan_interceptors.h for Go

None of the interceptors machinery is used/enabled for Go,
so don't include the header, it's not needed (must not be).
The problem is that we have fields in ThreadState that are
not present in the Go build, so changes in thread_interceptors.h
can cause Go build breakages due to missing fields.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D107561