Remove obsolete creation of task (we ship it with our code)

docs/guidelines-for-setting-up-a-local-workspace.md

@@ -161,47 +161,6 @@ To use IntelliJ IDEA's internal build system when you build JabRef through **Bui
 
   "Test using" is set to "IntelliJ IDEA".
 
-To use the "JabRef Main" run configuration, open **Run \| Edit Configurations... \| Application \| JabRef Main** and
-
-* Verify, that your JDK 14 is used
-* Set "VM Options" to the following:
-
-  ```text
-    --patch-module org.jabref=build/resources/main
-    --add-exports javafx.controls/com.sun.javafx.scene.control=org.jabref
-    --add-exports org.controlsfx.controls/impl.org.controlsfx.skin=org.jabref
-    --add-exports javafx.graphics/com.sun.javafx.scene=org.controlsfx.controls
-    --add-exports javafx.graphics/com.sun.javafx.scene.traversal=org.controlsfx.controls
-    --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls
-    --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls
-    --add-exports javafx.controls/com.sun.javafx.scene.control=org.controlsfx.controls
-    --add-exports javafx.controls/com.sun.javafx.scene.control.inputmap=org.controlsfx.controls
-    --add-exports javafx.base/com.sun.javafx.event=org.controlsfx.controls
-    --add-exports javafx.base/com.sun.javafx.collections=org.controlsfx.controls
-    --add-exports javafx.base/com.sun.javafx.runtime=org.controlsfx.controls
-    --add-exports javafx.web/com.sun.webkit=org.controlsfx.controls
-    --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls
-    --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=com.jfoenix
-    --add-exports com.oracle.truffle.regex/com.oracle.truffle.regex=org.graalvm.truffle
-    --add-opens javafx.controls/javafx.scene.control=org.jabref
-    --add-opens org.controlsfx.controls/org.controlsfx.control.textfield=org.jabref
-    --add-opens javafx.controls/javafx.scene.control.skin=org.controlsfx.controls
-    --add-opens javafx.graphics/javafx.scene=org.controlsfx.controls
-    --add-opens javafx.controls/com.sun.javafx.scene.control=org.jabref
-    --add-opens javafx.controls/com.sun.javafx.scene.control.behavior=com.jfoenix
-    --add-opens javafx.base/com.sun.javafx.binding=com.jfoenix
-    --add-opens javafx.graphics/com.sun.javafx.stage=com.jfoenix
-    --add-opens javafx.base/com.sun.javafx.event=com.jfoenix
-  ```
-
-  Optionally the following entries can also be added \(but they currently only produce warnings and they are not needed\):
-
-  ```text
-    --patch-module test=fastparse_2.12-1.0.0.jar
-    --patch-module test2=fastparse-utils_2.12-1.0.0.jar
-    --patch-module test3=sourcecode_2.12-0.1.4.jar
-  ```
-
 Essentially, you now have the best of both worlds: You can run Gradle tasks using the Gradle Tool Window and unless you haven't made changes to input files that generate sources, you can compile and run with IntelliJ's faster internal build system.
 
 #### Using JabRef's code-style