[www-apps/gitea] forgot stuff

www-apps/gitea/gitea-1.12.0_rc1.ebuild

@@ -29,7 +29,7 @@ fi
 
 LICENSE="Apache-2.0 BSD BSD-2 ISC MIT MPL-2.0"
 SLOT="0"
-IUSE="+acct pam sqlite"
+IUSE="+acct build-client pam sqlite"
 
 BDEPEND="dev-lang/go
 	build-client? ( >=net-libs/nodejs-10[npm] )"
@@ -91,7 +91,7 @@ src_prepare() {
 	fi
 
 	# Remove already build assets (like frontend part)
-	gitea_make clean-all
+	use build-client && gitea_make clean-all
 }
 
 src_compile() {