Remove .gitignore obsoleted by CMake

re #248

.gitignore

@@ -1,87 +0,0 @@
-*.swp
-*~
-Makefile
-Makefile.in
-compile
-configure
-configure.lineno
-config.status
-config.log
-LibVNCServer.spec.in
-LibVNCServer.spec
-x11vnc.spec.in
-.deps
-.libs
-aclocal.m4
-autom4te.cache
-libvncserver-config
-*.pc
-_configs.sed
-config.h
-LibVNCServer*.tar.gz
-upload_beta.sh
-stamp-*
-x11vnc*.tar.gz
-config.h.in
-rfbconfig.h
-rfbconfig.h.in
-install-sh
-missing
-mkinstalldirs
-depcomp
-description-pak
-libvncserver*.deb
-*.o
-*.lo
-CVS
-client_examples/SDLvncviewer
-client_examples/backchannel
-client_examples/gtkvncviewer
-client_examples/ppmtest
-config.guess
-config.sub
-examples/zippy
-examples/backchannel
-examples/blooptest
-examples/camera
-examples/colourmaptest
-examples/example
-examples/filetransfer
-examples/fontsel
-examples/mac
-examples/pnmshow
-examples/pnmshow24
-examples/regiontest
-examples/repeater
-examples/rotate
-examples/simple
-examples/simple15
-examples/storepasswd
-examples/vncev
-libtool
-libvncclient/libvncclient.la
-libvncserver/libvncserver.la
-test/blooptest
-test/cargstest
-test/copyrecttest
-test/cursortest
-test/encodingstest
-test/wstest
-/test/tjbench
-/test/tjunittest
-vncterm/LinuxVNC
-vncterm/VNCommand
-vncterm/example
-/vncterm/linuxvnc
-/vncterm/vncommand
-x11vnc.spec
-x11vnc/x11vnc
-CMakeCache.txt
-cmake_install.cmake
-/CMakeFiles
-/rfbproto.pdf
-/rfbproto.rst
-/vencrypt.txt
-/INSTALL
-.dirstamp
-/ltmain.sh