Revert "Create SVt_INVLIST"

This reverts commit e045dbedc7da04e20cc8cfccec8a2e3ccc62cc8b.
Blead won't compile with address sanitizer;  commit
7cb47964955167736b2923b008cc8023a9b035e8 reverting an earlier commit
failed to fix that.  I'm trying two more reversions to get it back
working.  This is one of those
Revert "regcomp.c: Move some #defines to only file that uses them"

This reverts commit 05944450e0fc82eb8fc1fb5a4bf63f23785262a0.
Blead won't compile with address sanitizer;  commit
7cb47964955167736b2923b008cc8023a9b035e8 reverting an earlier commit
failed to fix that.  I'm trying two more reversions to get it back
working.  This is one of those