internal/rosa/cmake: remove variant

This has no effect outside formatting of name and is a remnant of the old llvm helpers.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/make.go

@@ -78,11 +78,6 @@ type MakeHelper struct {
 
 var _ Helper = new(MakeHelper)
 
-// name returns its arguments joined with '-'.
-func (*MakeHelper) name(name, version string) string {
-	return name + "-" + version
-}
-
 // extra returns make and other optional dependencies.
 func (attr *MakeHelper) extra(flag int) P {
 	extra := P{Make}