Revert "cmd/link/internal/ld: assign temporary addresses to per-package text"

Revert "cmd/link/internal/ld: assign temporary addresses to per-package text"

This reverts commit http://go.dev/cl/349650

Reason for revert: CL breaks multiple builders with failure in TestLargeTextSectionSplitting

Change-Id: I4894ffd101b2757a6e6359212d5b8a64da1fcdf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/534299
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>