Revert changes to .gitignore

Author: xylar

.gitignore

@@ -51,16 +51,3 @@ components/eamxx/docs/common/eamxx_params.md
 components/eamxx/src/python/build
 components/eamxx/src/python/build_src
 components/eamxx/src/python/dist
-
-# OS generated files #
-######################
-.DS_Store
-.DS_Store?
-._*
-.Spotlight-V100
-.Trashes
-ehthumbs.db
-Thumbs.db
-
-# idea folder
-.idea/