delete binary clauses that are true at the base level #296

Job	Run time
ubuntu-latest\|debug\|--enable-mcsat\|CC=gcc CXX=g++	10m 11s
ubuntu-latest\|debug\|--enable-mcsat\|CC=clang CXX=clang++	8m 34s
ubuntu-latest\|debug\|--enable-thread-safety\|CC=gcc CXX=g++	3m 38s
ubuntu-latest\|debug\|--enable-thread-safety\|CC=clang CXX=clang++	4m 20s
ubuntu-latest\|release\|--enable-mcsat\|CC=gcc CXX=g++	4m 53s
ubuntu-latest\|release\|--enable-mcsat\|CC=clang CXX=clang++	4m 43s
ubuntu-latest\|release\|--enable-thread-safety\|CC=gcc CXX=g++	2m 0s
ubuntu-latest\|release\|--enable-thread-safety\|CC=clang CXX=clang++	2m 38s
ubuntu-latest\|gcov\|--enable-mcsat\|CC=gcc CXX=g++	6m 58s
ubuntu-latest\|debug\|--enable-thread-safety --enable-mcsat\|CC=gcc CXX=g++	7m 51s
	55m 46s

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