Remove unecessary settings from ".gitignore"
Remove unecessary settings from ".gitignore"

Files and directories related to the developer environment must be
included into the global Git ignore list.

Ye-Yong-Chi/Validation,jpjoao/Validation,osiux/Validation,rogeriopradoj/Validation,maliayas/Validation,Respect/Validation,rozehnal/Validation,solvire/Validation,lalocespedes/Validation,ahmetgunes/Validation,thedavidmeister/Validation,hudolfhess/Validation,zinovyev/Validation,regdos/Validation,Respect/Validation,mubassirhayat/Validation,mrsoto/Validation,riyan8250/Validation,Whyounes/Validation,guilhermesiani/Validation