Remove strigi hack from rc-sample.

Now that we have build system metadata handling available we don't need
to retain that rc-file recommended hack to get strigi to build properly.
There's probably others I could remove as well.

kdesrc-buildrc-sample

@@ -180,12 +180,10 @@ end module-set
 module-set strigi
     repository kde-projects
 
-    # The full use-modules seen here is required so that kdesrc-build doesn't
-    # try to build strigi/strigi, which will try to build the other 5
-    # submodules. In addition this builds in the right order.
-    use-modules strigi/libstreams strigi/libstreamanalyzer \
-                strigi/strigiutils strigi/strigidaemon \
-                strigi/strigiclient
+    # Not all modules in strigi are built, and there is a certain order required.
+    # See kde-build-metadata.git/{dependency-data,build-script-ignore}, which
+    # are used automatically by kdesrc-build.
+    use-modules kdesupport/strigi
 end module-set
 
 # kdesupport contains QCA, oxygen icons, and a few other small things.