cmd/compile: remove a few unused bits of code

Just the low-hanging fruit; code that was either never used, or its last
use was removed a while ago.

Change-Id: Ic7f90aeee3e6daf7edc16cde3c0a767d67e617ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/192618
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

1 files changed, 0 insertions, 15 deletions

diff --git a/src/cmd/compile/internal/ssa/lca_test.go b/src/cmd/compile/internal/ssa/lca_test.go
index 8221dc466d..8c8920c740 100644
--- a/src/cmd/compile/internal/ssa/lca_test.go
+++ b/src/cmd/compile/internal/ssa/lca_test.go
@@ -6,21 +6,6 @@ package ssa
 
 import "testing"
 
-type lca interface {
-	find(a, b *Block) *Block
-}
-
-func lcaEqual(f *Func, lca1, lca2 lca) bool {
-	for _, b := range f.Blocks {
-		for _, c := range f.Blocks {
-			if lca1.find(b, c) != lca2.find(b, c) {
-				return false
-			}
-		}
-	}
-	return true
-}
-
 func testLCAgen(t *testing.T, bg blockGen, size int) {
 	c := testConfig(t)
 	fun := c.Fun("entry", bg(size)...)