cmd/gomote: drop unnecessary check for arch files

The .[56789] extentions are no longer used since Go 1.5. and the
object files are already covered by isGitIgnored.

Change-Id: I0f2fe2bc248a8a3f0b2bdc1b59dd31f2242a6797
Reviewed-on: https://go-review.googlesource.com/83695
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/cmd/gomote/push.go b/cmd/gomote/push.go
index 6587146..021877e 100644
--- a/cmd/gomote/push.go
+++ b/cmd/gomote/push.go
@@ -155,10 +155,6 @@
 		if rel == "" {
 			return nil
 		}
-		if strings.HasPrefix(rel, "test/") && isDotArchChar(rel) {
-			// Skip test/bench/shootout/spectral-norm.6, etc.
-			return nil
-		}
 		if fi.IsDir() {
 			switch rel {
 			case ".git", "pkg", "bin":
@@ -382,14 +378,3 @@
 	}
 	return fmt.Sprintf("%x", s1.Sum(nil)), nil
 }
-
-func isDotArchChar(path string) bool {
-	if len(path) < 2 || path[len(path)-2] != '.' {
-		return false
-	}
-	switch path[len(path)-1] {
-	case '6', '8', '5', '7', '9':
-		return true
-	}
-	return false
-}