[SVG] Regression: SVG syncbase animation no longer supports cyclic references

Removed the logic of reconnecting the conditions which was added before to support dynamic interactions of eventbases using js.
It was breaking the syncbase logic for cyclic references as there is common code used for both eventbases and syncbases.
Hence removing the logic and as a result of this, it will break one testcase related to dynamic eventbase interactions.
Modifying the test expectations for this file and planning to add back the support once we implement eventbase logic with SVGDocumentExtensions.

Also fixed the seekToTime bug related to cyclic references.

R=pdr@chromium.org, schenney@chromium.org, dschulze@chromium.org, fmalita@chromium.org
BUG=308394

Review URL: https://codereview.chromium.org/80263007

git-svn-id: svn://svn.chromium.org/blink/trunk@162961 bbb929c8-8fbe-4397-9dbb-9b2b20218538