cmd/compile,runtime: remove runtime.mulUintptr
For #48798
Change-Id: I3e928d3921cfd5a7bf35b23d0ae6442aa6d2d482
GitHub-Last-Rev:
b101a8a54f2cc9ea917f879a545f30c702508743
GitHub-Pull-Request: golang/go#63349
Reviewed-on: https://go-review.googlesource.com/c/go/+/532355
TryBot-Result: Gopher Robot <gobot@golang.org>
Commit-Queue: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>