Revert "Merge pull request #108 from augmented-go/Go_Scanner"

This reverts commit 7bac7d63b22904e5af69e673d29bb1b3ac07c366, reversing
changes made to ae87d25505f12871bcda91b2bc35efc752a2a9e9.

cause of the scanner bug i could not debug
refs 115 - Implemented a red circle that is shown around the stones that differs from the real board. So all differences between real board an virtual board are shown on the virtual board.