apparmor: remove unneeded #ifdef in decompress_zstd()

The whole function is guarded by CONFIG_SECURITY_APPARMOR_EXPORT_BINARY,
so the #ifdef here is redundant, remove it.

Signed-off-by: Xiu Jianfeng <[e-mail]>
Signed-off-by: John Johansen <[e-mail]>

security/apparmor/apparmorfs.c

···
 
 static int decompress_zstd(char *src, size_t slen, char *dst, size_t dlen)
 {
-#ifdef CONFIG_SECURITY_APPARMOR_EXPORT_BINARY
 	if (slen < dlen) {
 		const size_t wksp_len = zstd_dctx_workspace_bound();
 		zstd_dctx *ctx;
···
 		kvfree(wksp);
 		return ret;
 	}
-#endif
 
 	if (dlen < slen)
 		return -EINVAL;