Remove trailing parentheses from insert string
Remove trailing parentheses from insert string

ycmd now adds parentheses for candidates with no function arguments to
the insert string. This adds a second pair of parentheses to the
candidate test in the company popup. The first is the one from the
insertion_text adn the other is from the annotation.

ptrv/emacs-ycmd,phst/emacs-ycmd,emacsmirror/ycmd,emacsmirror/ycmd,ptrv/emacs-ycmd,ptrv/emacs-ycmd,emacsmirror/ycmd,ptrv/emacs-ycmd,phst/emacs-ycmd,phst/emacs-ycmd,phst/emacs-ycmd,phst/emacs-ycmd,emacsmirror/ycmd,emacsmirror/ycmd,emacsmirror/ycmd,abingham/emacs-ycmd,phst/emacs-ycmd,ptrv/emacs-ycmd,ptrv/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd,abingham/emacs-ycmd