remove .dat files in favor of as needed generation and more comment changes

Author: wilfonba

.gitignore

@@ -77,8 +77,6 @@ examples/*/run-*/
 examples/*/logs/
 examples/**/*.f90
 examples/**/*.csv
-!examples/3D_lag_bubbles_shbubcollapse/input/lag_bubbles.dat
-!examples/3D_lag_bubbles_bubblescreen/input/lag_bubbles.dat
 workloads/
 
 benchmarks/*batch/*/