Remove unused warning on non-win32
diff --git a/src/remote.c b/src/remote.c
index 4b51642..4629175 100644
--- a/src/remote.c
+++ b/src/remote.c
@@ -116,9 +116,9 @@ static int get_check_cert(int *out, git_repository *repo)
static int canonicalize_url(git_buf *out, const char *in)
{
+#ifdef GIT_WIN32
const char *c;
-#ifdef GIT_WIN32
/* Given a UNC path like \\server\path, we need to convert this
* to //server/path for compatibility with core git.
*/