No longer necessary with loadserialcomm.iocsh

iocBoot/iocxxx/common/asynRecord.substitutions

-file "$(ASYN)/db/asynRecord.db"
-{
-pattern
-{R         PORT    ADDR    OMAX  IMAX}
-{asyn_1   serial1    0     256  256}
-{asyn_2   serial2    0     256  256}
-{asyn_3   serial3    0     256  256}
-{asyn_4   serial4    0     256  256}
-{asyn_5   serial5    0     256  256}
-{asyn_6   serial6    0    2600  2600}
-{asyn_7   serial7    0     256  256}
-{asyn_8   serial8    0     256  256}
-#{gpib1    gpib1      1    2600 2600}
-}