wrong suggestions were given, remove algorithm that seeks for first pare...

GOnpp was not giving me the suggestions properly in my go source code. It was always sending the offset 469 to gocode.  The true offset is within a closure, which was a parameter of a function from the offset 469.

Since gocode already offers the best suggestions base on the provided offset, can we just remove the algorithm that seeks for the parenthesis? 

- Thanks.