Fixing module reference

Removed reference to module in pom.xml that does not exist.

archiva-modules/archiva-base/pom.xml

@@ -41,7 +41,6 @@
     <module>archiva-policies</module>
     <module>archiva-indexer</module>
     <module>archiva-consumers</module>
-    <module>archiva-repository-api</module>
     <module>archiva-repository-layer</module>
     <module>archiva-xml-tools</module>
     <module>archiva-proxy-api</module>