IB/hfi1: Disable by default

There is a strict policy in the Linux kernel that new drivers must be
disabled by default. Hence leave out the "default m" line from Kconfig.

Fixes: f48ad614 ("IB/hfi1: Move driver out of staging")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Jubin John <jubin.john@intel.com>
Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: <stable@vger.kernel.org> # v4.7+
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/hfi1/Kconfig

@@ -3,7 +3,6 @@ config INFINIBAND_HFI1
 	depends on X86_64 && INFINIBAND_RDMAVT
 	select MMU_NOTIFIER
 	select CRC32
-	default m
 	---help---
 	This is a low-level driver for Intel OPA Gen1 adapter.
 config HFI1_DEBUG_SDMA_ORDER