Remove etags tag files support since ycmd is not supporting them
Remove etags tag files support since ycmd is not supporting them

ctags has the option to generate tag files for use in emacs (-e flag).
Since ycmd is not supporting those tag file formats we cannot use the
etags tags table files.

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