EDAC: Delete unnecessary checks before pci_dev_put()

The pci_dev_put() function tests whether its argument is NULL and thus
the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: http://lkml.kernel.org/r/54CFC12C.9010002@users.sourceforge.net
Signed-off-by: Borislav Petkov <bp@suse.de>

diff --cc drivers/edac/i82443bxgx_edac.c
Simple merge

diff --cc drivers/edac/i82860_edac.c
Simple merge

diff --cc drivers/edac/i82875p_edac.c
Simple merge

diff --cc drivers/edac/i82975x_edac.c
Simple merge