libdir drop custom directory

app/arch/lz4/ympbuild

@@ -23,9 +23,6 @@ build(){
 package(){
     make install -j`nproc` PREFIX=/usr
     mkdir -p ${DESTDIR}/usr/lib64
-    mv ${DESTDIR}/usr/{lib,lib64/lz4}
-    mkdir -p ${DESTDIR}/etc/ld.so.conf.d/
-    echo "/usr/lib64/lz4/" > ${DESTDIR}/etc/ld.so.conf.d/lz4.conf
-    mv ${DESTDIR}/usr/lib64/{$name/pkgconfig,}
+    mv ${DESTDIR}/usr/{lib,lib64}
 }