Disable LLVM module since it fails in bulks

Index: config/openbsd/build.xml
--- config/openbsd/build.xml.orig
+++ config/openbsd/build.xml
@@ -204,14 +204,6 @@
 	    </link>
         </build>
 
-        <!-- LLVM -->
-        <build_simple module="llvm"/>
-	<build module="llvm" simple="true">
-	    <link>
-		<arg value="-lc"/>
-	    </link>
-	</build>
-
         <!-- LMDB -->
         <build module="lmdb" simple="true" if:true="${binding.lmdb}">
             <beforeCompile>
