Remove redundant .gitignore entries

Author: lotif

.gitignore

@@ -44,16 +44,6 @@ outputs/
 # mkdocs site
 site/
 
-# Training examples
-examples/training/single_table/data/**
-examples/training/single_table/results/**
-examples/training/multi_table/data/**
-examples/training/multi_table/results/**
-examples/synthesizing/single_table/data/**
-examples/synthesizing/single_table/results/**
-examples/synthesizing/multi_table/data/**
-examples/synthesizing/multi_table/results/**
-
 # Test artifacts
 tests/integration/attacks/tartan_federer/assets/tabddpm_models/**/challenge_label_predictions.csv
 tests/integration/attacks/tartan_federer/assets/tartan_federer_attack_results