Update .gitignore and remove useless examples/SConscript

Author: touilleMan

.gitignore

@@ -12,26 +12,5 @@ __pycache__
 # mac os thumbs files
 .DS_Store
 
-# Godot import folders
-.import
-.cache
-
-# Godot runtime logs
-logs
-
-# Scons build artefact
-.sconsign.dblite
-
-# scons stuff
-/custom.py
-
 # Build directory
 /build/
-
-# Autogenerated by Cython
-/pythonscript/_pythonscript_api.h
-
-# Lazy generated symlinks on build
-/examples/*/addons
-/tests/*/addons
-/tests/*/lib