QuarkPlatformPkg/SpiFvbServices: Remove duplicate global variable

QuarkPlatformPkg/SpiFvbServices: Remove duplicate global variable

Remove declaration of gEfiFirmwareVolumeBlockProtocolGuid and
gEfiSmmFirmwareVolumeBlockProtocolGuid that are generating build
failures on GCC because these same variables are declared in
AutoGen.c and assigned a GUID value from DEC file.

Cc: Kelly Steele <kelly.steele@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Kelly Steele <kelly.steele@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19305 6f19259b-4bc3-4df7-8a09-765794883524