FindGLUT: Fix regression when pkg-config is not available
In !7770 (merged) we accidentally removed the entire condition around the pkg-config code path instead of just the multi-config part.
Fixes: #24095 (closed)
Backport: release
In !7770 (merged) we accidentally removed the entire condition around the pkg-config code path instead of just the multi-config part.
Fixes: #24095 (closed)
Backport: release