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/meson.go

@@ -67,11 +67,6 @@ type MesonHelper struct {
 
 var _ Helper = new(MesonHelper)
 
-// name returns its arguments joined with '-'.
-func (*MesonHelper) name(name, version string) string {
-	return name + "-" + version
-}
-
 // extra returns hardcoded meson runtime dependencies.
 func (*MesonHelper) extra(int) P { return P{Meson} }