Update .gitignore

I see no benefit in having multiple ./idea shit when you can have just one.

.gitignore

@@ -61,30 +61,9 @@ local.properties
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
-# User-specific stuff:
-.idea/**/workspace.xml
-.idea/**/tasks.xml
-.idea/dictionaries
-
-# Sensitive or high-churn files:
-.idea/**/dataSources/
-.idea/**/dataSources.ids
-.idea/**/dataSources.xml
-.idea/**/dataSources.local.xml
-.idea/**/sqlDataSources.xml
-.idea/**/dynamic.xml
-.idea/**/uiDesigner.xml
-
-# Gradle:
-.idea/**/gradle.xml
-.idea/**/libraries
-
 # CMake
 cmake-build-debug/
 
-# Mongo Explorer plugin:
-.idea/**/mongoSettings.xml
-
 ## File-based project format:
 *.iws
 
@@ -92,6 +71,7 @@ cmake-build-debug/
 
 # IntelliJ
 /out/
+.idea/
 
 # mpeltonen/sbt-idea plugin
 .idea_modules/
@@ -99,9 +79,6 @@ cmake-build-debug/
 # JIRA plugin
 atlassian-ide-plugin.xml
 
-# Cursive Clojure plugin
-.idea/replstate.xml
-
 # Ruby plugin and RubyMine
 /.rakeTasks
 
@@ -119,9 +96,6 @@ fabric.properties
 # .idea/misc.xml
 # *.ipr
 
-# Sonarlint plugin
-.idea/sonarlint
-
 ### Maven ###
 target/
 pom.xml.tag