Remove reference to releng.buildtools form the SDK configuration

Author: merks

oomph/PlatformSDKConfiguration.setup

@@ -209,8 +209,6 @@
         href="index:/org.eclipse.setup#//@projectCatalogs[name='org.eclipse']/@projects[name='platform']/@projects[name='ui']/@streams[name='master']"/>
     <stream
         href="index:/org.eclipse.setup#//@projectCatalogs[name='org.eclipse']/@projects[name='platform']/@projects[name='releng.aggregator']/@streams[name='master']"/>
-    <stream
-        href="index:/org.eclipse.setup#//@projectCatalogs[name='org.eclipse']/@projects[name='platform']/@projects[name='releng.buildtools']/@streams[name='master']"/>
     <stream
         href="index:/org.eclipse.setup#//@projectCatalogs[name='org.eclipse']/@projects[name='platform']/@projects[name='website']/@streams[name='master']"/>
     <description>The Platform SDK workspace provides all the source code of the Eclipse Platform SDK.</description>