Revert "added a renamed file"

This reverts commit 058d9c8b5b6e1ffe2f3e07e533927231d03d7756.
Revert "use more stack memory inside OMP regions"

This reverts commit 647f627c0cca79fb93875409b55105336a7a0cbd.
Revert "cache blocking"

This reverts commit b1e8fdb4dedadf27dd7cd5f7934989e9d597e499.
Revert "vectorized chemistry"

This reverts commit 0174e262adda4183476e4951e16841f03cd25eac.
use stack memory