[.gitignore] remove target dir and PyInstaller .spec files

Author: chrissimpkins

.gitignore

@@ -31,7 +31,6 @@ MANIFEST
 #  Usually these files are written by a python script from a template
 #  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
-*.spec
 
 # Installer logs
 pip-log.txt
@@ -71,9 +70,6 @@ instance/
 # Sphinx documentation
 docs/_build/
 
-# PyBuilder
-target/
-
 # Jupyter Notebook
 .ipynb_checkpoints