CMakeLists: fix compilation of can-calc-bit-timing

Fixes: 9c38c16437 ("can-calc-bit-timing: move into subdir")
Reported-by: Tompee Balauag <tompee26@gmail.com>
Link: https://github.com/linux-can/can-utils/issues/373
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

CMakeLists.txt

@@ -46,7 +46,6 @@ set(PROGRAMS_J1939
 set(PROGRAMS
     ${PROGRAMS_CANLIB}
     bcmserver
-    can-calc-bit-timing
     canfdtest
     cangw
     cansniffer