I want to remove most of the standard Eclipse (Mars 4.5.1) plugins (e.g. Mylyn or Git) to get a leightweight Eclipse installation.
But the Uninstall button in the Installation Details dialog is disabled for these standard plug-ins.
Is there any method to achieve this?
I tried to manually delete the jar files and update the configuration\org.eclipse.equinox.simpleconfigurator\bundles.info file but it is diffcult to resolve dependencies this way and does not completely remove the plug-ins.
The Eclipse packages offered on the main Eclipse downlaods page are not made for removing individual features.
As Greg commented, it is easier to start with one of the platform downloads from this page: http://download.eclipse.org/eclipse/downloads/drops4/R-4.5.1-201509040015/
The Eclipse SDK contains apart from the core platform bundles also JDT and PDE. If you don't need PDE, you can also start with the JDT SDK download.
Once you have downloaded and started an initial minimal Eclipse, you can add desired features using Help > Install New Software.