removed redundant line from gitignore

.gitignore

@@ -22,24 +22,16 @@ yacy.log
 /build/
 .gradle
 source/net/yacy/peers/operation/yacyBuildProperties.java
-/.idea/workspace.xml
-# User-specific stuff:
 **/.idea/workspace.xml
 **/.idea/tasks.xml
 **/.idea/dictionaries
 **/.idea/vcs.xml
 **/.idea/jsLibraryMappings.xml
-
-# Sensitive or high-churn files:
 **/.idea/dataSources.ids
 **/.idea/dataSources.xml
 **/.idea/dataSources.local.xml
 **/.idea/sqlDataSources.xml
 **/.idea/dynamic.xml
 **/.idea/uiDesigner.xml
-
-## File-based project format:
 *.iws
-
-# IntelliJ
 /out/