remove unused gitignore entries
remove unused gitignore entries

matej116/cgeo,tobiasge/cgeo,Bananeweizen/cgeo,cgeo/cgeo,cgeo/cgeo,SammysHP/cgeo,mucek4/cgeo,cgeo/cgeo,kumy/cgeo,auricgoldfinger/cgeo,rsudev/c-geo-opensource,kumy/cgeo,kumy/cgeo,superspindel/cgeo,cgeo/cgeo,pstorch/cgeo,S-Bartfast/cgeo,mucek4/cgeo,samueltardieu/cgeo,S-Bartfast/cgeo,SammysHP/cgeo,pstorch/cgeo,pstorch/cgeo,auricgoldfinger/cgeo,rsudev/c-geo-opensource,auricgoldfinger/cgeo,tobiasge/cgeo,matej116/cgeo,Bananeweizen/cgeo,S-Bartfast/cgeo,SammysHP/cgeo,mucek4/cgeo,Bananeweizen/cgeo,samueltardieu/cgeo,tobiasge/cgeo,samueltardieu/cgeo,superspindel/cgeo,superspindel/cgeo,rsudev/c-geo-opensource,matej116/cgeo