Remove unused LLDB_ENABLE_LIBEDIT, LLVM_ENABLE_TERMINFO and PYTHON_EXECUTABLE llvm configure options#1519

mcbarton wants to merge 2 commits intoemscripten-core:mainemscripten-core/emsdk:mainfrom

mcbarton:Remove-unused-options-llvm-buildmcbarton/emsdk:Remove-unused-options-llvm-buildCopy head branch name to clipboard