[vcs-log] do not register VcsLogUi on VcsLogData

1. We need to dispose ui in edt.
2. Ui is disposed in content provider anyway.

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/AbstractVcsLogUi.java

@@ -73,7 +73,6 @@ public abstract class AbstractVcsLogUi implements VcsLogUi, Disposable {
     myColorManager = manager;
 
     Disposer.register(this, myRefresher);
-    Disposer.register(logData, this);
 
     myLog = new VcsLogImpl(logData, this);
     myVisiblePack = VisiblePack.EMPTY;