There is an upstream list of PCMCIA drivers that are about to be removed from
the kernel in the near future:
https://lore.kernel.org/all/Y07d7rMvd5++85BJ@owl.dominikbrodowski.net/

Let's disable those marked as [-] for a couple of reasons:
1) to see if there are any users
2) drop orphaned (potentially insecure) code
3) free some space

The list:
> [-] PCMCIA_BCM63XX - bcm63xx_pcmcia.c bcm63xx_pcmcia.h : no specific activity since driver was added in 2009
> [-] ELECTRA_CF - electra_cf.c : no specific activity since driver was added in 2007
> [-] I82092 - i82092.c i82092aa.h : bugfix in 2010
> [-] I82365 - i82365.c i82365.h : some activity in 2009 (?)
> [-] OMAP_CF - omap_cf.c : some activity in 2007
> [-] PD6729 - pd6729.c pd6729.h : bugfix in 2010
> [-] TCIC - tcic.c tcic.h : no specific activity since Linux-2.6.12-rc2
> [-] PCMCIA_XXS1500 - xxs1500_ss.c : bugfix in 2010
> [-] drivers/bluetooth/bt3c_cs.c                                       some activity in 2006
> [-] drivers/bluetooth/dtl1_cs.c                                       some activity in 2006
> [-] drivers/char/pcmcia/cm4000_cs.c                           see https://lore.kernel.org/lkml/f41c2765-80e0-48bc-b1e4-8cfd3230fd4a@www.fastmail.com/
> [-] drivers/char/pcmcia/cm4040_cs.c                           see https://lore.kernel.org/lkml/f41c2765-80e0-48bc-b1e4-8cfd3230fd4a@www.fastmail.com/
> [-] drivers/char/pcmcia/synclink_cs.c                         see https://lore.kernel.org/lkml/f41c2765-80e0-48bc-b1e4-8cfd3230fd4a@www.fastmail.com/
> [-] drivers/net/ethernet/3com/3c589_cs.c                      no specific activity since 2011
> [-] drivers/net/ethernet/8390/axnet_cs.c                      no specific activity since 2011
> [-] drivers/net/ethernet/fujitsu/fmvj18x_cs.c                 no specific activity since 2011
> [-] drivers/net/ethernet/smsc/smc91c92_cs.c                   no specific activity since 2011
> [-] drivers/net/ethernet/xircom/xirc2ps_cs.c                  no specific activity since 2011
> [-] drivers/net/wireless/atmel/atmel_cs.c                     no specific activity since tree reorganization 2015
> [-] drivers/net/wireless/cisco/airo_cs.c                      no specific activity since tree reorganization 2015
> [-] drivers/net/wireless/intersil/hostap/hostap_cs.c          no specific activity since tree reorganization 2015
> [-] drivers/net/wireless/intersil/orinoco/orinoco_cs.c                no specific activity since tree reorganization 2015
> [-] drivers/net/wireless/intersil/orinoco/spectrum_cs.c               no specific activity since tree reorganization 2015
> [-] drivers/net/wireless/marvell/libertas/if_cs.c             no specific activity since tree reorganization 2015
> [-] drivers/parport/parport_cs.c                              no specific activity since Linux-2.6.12-rc2
> [-] drivers/scsi/pcmcia/aha152x_stub.c                                bugfix in 2009
> [-] drivers/scsi/pcmcia/qlogic_stub.c                         no specific activity since Linux-2.6.12-rc2
> [-] drivers/usb/host/sl811_cs.c                                       added in 2005
> [-] sound/pcmcia/pdaudiocf/pdaudiocf.c                                some activity in 2006
> [-] sound/pcmcia/vx/vxpocket.c                                        some activity in 2006