Revert "Add never claim parser."

Such changes should not be pushed to master before they are finished
(this doesn't pass distcheck).

This reverts commit 9aaa638b27.

src/tgbatest/Makefile.am

@@ -39,7 +39,6 @@ check_PROGRAMS = \
   explprod \
   ltlprod \
   mixprod \
-  neverclaimread \
   powerset \
   readsave \
   reductgba \
@@ -59,7 +58,6 @@ explprod_SOURCES = explprod.cc
 ltl2tgba_SOURCES = ltl2tgba.cc
 ltlprod_SOURCES  = ltlprod.cc
 mixprod_SOURCES  = mixprod.cc
-neverclaimread_SOURCES = neverclaimread.cc
 powerset_SOURCES = powerset.cc
 randtgba_SOURCES = randtgba.cc
 readsave_SOURCES = readsave.cc
@@ -77,7 +75,6 @@ TESTS = \
   explicit.test \
   taatgba.test \
   tgbaread.test \
-  neverclaimread.test \
   readsave.test \
   ltl2tgba.test \
   ltl2neverclaim.test \