Remove the old broken game-theory-based simulation reductions.

This implementation of direct simulation was only working on
degeneralized automata, and produce automata that are inferiors to
those output by the new direct simulation implementation (in
tgba/simulation.hh) which can also work on TGBA.  The delayed
simulation has never been reliable.  It's time for some spring
cleaning.

* src/tgba/tgbareduc.hh, src/tgba/tgbareduc.cc: Delete.
* src/tgba/Makefile.am: Adjust.
* src/tgbaalgos/reductgba_sim.cc, src/tgbaalgos/reductgba_sim.hh:
Remove all code, and keep only a deprecated replacement
from reduc_tgba_sim().
* src/tgbaalgos/reductgba_sim_del.cc: Delete.
* src/tgbaalgos/Makefile.am: Adjust.
* src/tgbatest/reduccmp.test, src/tgbatest/reductgba.cc,
src/tgbatest/reductgba.test: Delete.
* src/tgbatest/Makefile.am: Adjust.
* src/tgbatest/ltl2tgba.cc: Undocument options -R1s, -R1t,
-R2s, -R2t, and implement them using the new direct simulation.
Remove options -Rd and -RD.
* src/tgbatest/spotlbtt.test: Remove entry using these old options.
* wrap/python/spot.i: Do not process tgbaalgos/reductgba_sim.cc.

wrap/python/spot.i

@@ -96,7 +96,6 @@
 #include "tgbaalgos/magic.hh"
 #include "tgbaalgos/minimize.hh"
 #include "tgbaalgos/neverclaim.hh"
-#include "tgbaalgos/reductgba_sim.hh"
 #include "tgbaalgos/rundotdec.hh"
 #include "tgbaalgos/save.hh"
 #include "tgbaalgos/sccfilter.hh"
@@ -180,7 +179,6 @@ using namespace spot;
 %feature("new") spot::ltl_to_tgba_lacim;
 %feature("new") spot::minimize_wdba;
 %feature("new") spot::minimize_monitor;
-%feature("new") spot::reduc_tgba_sim;
 %feature("new") spot::scc_filter;
 %feature("new") spot::tgba_dupexp_bfs;
 %feature("new") spot::tgba_dupexp_dfs;
@@ -226,7 +224,6 @@ using namespace spot;
 %include "tgbaalgos/magic.hh"
 %include "tgbaalgos/minimize.hh"
 %include "tgbaalgos/neverclaim.hh"
-%include "tgbaalgos/reductgba_sim.hh"
 %include "tgbaalgos/rundotdec.hh"
 %include "tgbaalgos/save.hh"
 %include "tgbaalgos/sccfilter.hh"