Remove commented out test from tests/coverage/coverage.cpp.
Remove commented out test from tests/coverage/coverage.cpp.

nickerso/libcellml,nickerso/libcellml,MichaelClerx/libcellml,cellml/libcellml,hsorby/libcellml,nickerso/libcellml,cellml/libcellml,nickerso/libcellml,MichaelClerx/libcellml,cellml/libcellml,hsorby/libcellml,MichaelClerx/libcellml,cellml/libcellml,hsorby/libcellml,hsorby/libcellml