Documentation: superfluous file removed

plugins/org.yakindu.sct.doc.user/.externalToolBuilders/Generate_Doc.launch

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntBuilderLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.ATTR_TARGETS_UPDATED" value="true"/>
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<booleanAttribute key="org.eclipse.debug.ui.ATTR_LAUNCH_IN_BACKGROUND" value="false"/>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<booleanAttribute key="org.eclipse.jdt.launching.DEFAULT_CLASSPATH" value="true"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="org.yakindu.sct.doc.user"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/org.yakindu.sct.doc.user/build.xml}"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_RUN_BUILD_KINDS" value=""/>
-<booleanAttribute key="org.eclipse.ui.externaltools.ATTR_TRIGGERS_CONFIGURED" value="true"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/org.yakindu.sct.doc.user}"/>
-</launchConfiguration>