forgetest: the burns cover only what the burns run

BURN_COVERS named src/accel.* and src/wizcalc.*, carried over from the
sheet test the burns replaced. The burns' path is wizlive.c, then
wiz_lens_rehome() and lenshome_run(); neither file is on it, and the
focus burn holds the lens window as found rather than measuring stops.
An accelerometer or dark-wizard change re-required both burns for
nothing. Both files stay covered: src/accel.* by the cooling tests,
src/wizcalc.* by the setup checks that run it (lens travel among them).

Proof: the coverage lint on a manifest from the recipe pins reports 0
uncovered paths, as before. test_setup_burns, test_manifest,
test_campaign and test_artifact pass under Linux, and the forgetest
host suite passes under Linux.

Acceptance: setup.focus and setup.floor (BURN_COVERS is setup_burns.py's
shared text, so both fingerprints move; the catalog hash changes with
the covers).

forgetest/forgetest/suite/setup_burns.py

@@ -38,7 +38,6 @@ BURN_COVERS = [("forgectrl", "src/wizlive.*"), ("forgectrl", "src/wizrun.h"),
                ("forgectrl", "src/main.c"), ("forgectrl", "src/ui/wizard.*"),
                ("forgectrl", "src/super.c"),
                ("forgectrl", "src/status.c"), ("forgectrl", "src/cool.c"),
-               ("forgectrl", "src/accel.*"), ("forgectrl", "src/wizcalc.*"),
                ("grblhal-glowforge", "src/glowforge_laser.c"),
                ("grblhal-glowforge", "src/glowforge_status.c"),
                ("grblhal-glowforge", "src/glowforge_homing.*"),