Drop nghttp2 from the module, since we're bundling it

Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>

nodejs.yaml

@@ -15,7 +15,7 @@ data:
   - buildrequires:
       platform: [el8]
     requires:
-      platform: [el8]
+      platform: [https://src.osci.redhat.com/rpms/nghttp2/commits/rhel-8.6.0el8]
   references:
     community: http://nodejs.org
     documentation: http://nodejs.org/en/docs
@@ -48,10 +48,6 @@ data:
         rationale: Platform abstraction layer for Node.js
         ref: 1
         buildorder: 0
-      nghttp2:
-        rationale: Needed for HTTP2 support
-        ref: rawhide
-        buildorder: 0
       nodejs:
         rationale: Javascript runtime and npm package manager.
         ref: 16