Remove duplicate symlinks

Now that the copy-firmware.sh script can create symlinks from the Link:
entries in the WHENCE file on the fly, remove the duplicate symlinks
from the filesystem.

One odd entry was intel/dsp_fw_cnl.bin which was listed both as symlink
and as a regular file. Both entries can be removed since the it's really
a symlink, so it will be recreated at installation time.

While at it, update the check_whence.py script to not look for the
existence of symlinks in the filesystem because they are created on the
fly at installation time by the copy_firmware.sh script.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

netronome/flower/nic_AMDA0097-0001_8x10.nffw

-nic_AMDA0097.nffw
\ No newline at end of file

netronome/flower/nic_AMDA0099-0001_1x10_1x25.nffw

-nic_AMDA0099.nffw
\ No newline at end of file

netronome/flower/nic_AMDA0099-0001_2x10.nffw

-nic_AMDA0099.nffw
\ No newline at end of file

netronome/flower/nic_AMDA0099-0001_2x25.nffw

-nic_AMDA0099.nffw
\ No newline at end of file

netronome/nic_AMDA0058-0011_2x40.nffw

-nic/nic_AMDA0058-0011_2x40.nffw
\ No newline at end of file

netronome/nic_AMDA0058-0012_2x40.nffw

-nic/nic_AMDA0058-0012_2x40.nffw
\ No newline at end of file

netronome/nic_AMDA0078-0011_1x100.nffw

-nic/nic_AMDA0078-0011_1x100.nffw
\ No newline at end of file

netronome/nic_AMDA0081-0001_1x40.nffw

-nic/nic_AMDA0081-0001_1x40.nffw
\ No newline at end of file

netronome/nic_AMDA0081-0001_4x10.nffw

-nic/nic_AMDA0081-0001_4x10.nffw
\ No newline at end of file

netronome/nic_AMDA0096-0001_2x10.nffw

-nic/nic_AMDA0096-0001_2x10.nffw
\ No newline at end of file

netronome/nic_AMDA0097-0001_2x40.nffw

-nic/nic_AMDA0097-0001_2x40.nffw
\ No newline at end of file

netronome/nic_AMDA0097-0001_4x10_1x40.nffw

-nic/nic_AMDA0097-0001_4x10_1x40.nffw
\ No newline at end of file

netronome/nic_AMDA0097-0001_8x10.nffw

-nic/nic_AMDA0097-0001_8x10.nffw
\ No newline at end of file

netronome/nic_AMDA0099-0001_1x10_1x25.nffw

-nic/nic_AMDA0099-0001_1x10_1x25.nffw
\ No newline at end of file

netronome/nic_AMDA0099-0001_2x10.nffw

-nic/nic_AMDA0099-0001_2x10.nffw
\ No newline at end of file

netronome/nic_AMDA0099-0001_2x25.nffw

-nic/nic_AMDA0099-0001_2x25.nffw
\ No newline at end of file

nvidia/tegra124/vic.bin

-vic03_ucode.bin
\ No newline at end of file

nvidia/tegra186/vic.bin

-vic04_ucode.bin
\ No newline at end of file

nvidia/tegra210/vic.bin

-vic04_ucode.bin
\ No newline at end of file

qat_mmp.bin

-qat_895xcc_mmp.bin
\ No newline at end of file