Include e4.core.tools feature not its source

Source bundles will be included automatically.

Author: akurtakov

eclipse.platform.releng.tychoeclipsebuilder/eclipse.platform.repository/category.xml

@@ -10,7 +10,7 @@
    <feature id="org.eclipse.swt.tools.feature" version="0.0.0"/>
    <feature id="org.eclipse.equinox.executable" version="0.0.0"/>
    <feature id="org.eclipse.sdk" version="0.0.0"/>
-   <feature id="org.eclipse.e4.core.tools.feature.source" version="0.0.0"/>
+   <feature id="org.eclipse.e4.core.tools.feature" version="0.0.0"/>
    <feature id="org.eclipse.e4.tools.persistence.feature" version="0.0.0"/>
    <feature id="org.eclipse.pde.unittest.junit" version="0.0.0"/>
    <feature id="org.eclipse.tips.feature" version="0.0.0"/>