Removed work around Far 3.0.4098 (FarNet 5.0.57).

git-svn-id: http://farnet.googlecode.com/svn/trunk@860 adbc6c76-2828-0410-9a29-2134f03e8e62
FarNet.5.0.59
Editor color drawers use the new flag ECF_AUTODELETE (Far 3.0.4134).

git-svn-id: http://farnet.googlecode.com/svn/trunk@861 adbc6c76-2828-0410-9a29-2134f03e8e62