efi_loader: memory leak in efi_dump_single_var()

A misplaced return statement lead to a memory leak in
efi_dump_single_var().

Reported-by: Coverity (CID 185829)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

cmd/nvedit_efi.c

@@ -80,7 +80,6 @@ static void efi_dump_single_var(u16 *name, efi_guid_t *guid)
 	printf(", DataSize = 0x%zx\n", size);
 	print_hex_dump("    ", DUMP_PREFIX_OFFSET, 16, 1, data, size, true);
 
-	return;
 out:
 	free(data);
 }