Revert "mb/ocp/deltalake: Select IPMI OCP to send POST start/end command"

This reverts commit a5ca4a0c75.

Reason for revert: Breaks coreboot tree because of non existent kconfig symbol

Change-Id: Ib8f55dc2f6444690945bc2dc64baad5d0c39cdf4
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43069
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/ocp/deltalake/Kconfig

@@ -10,7 +10,6 @@ config BOARD_SPECIFIC_OPTIONS
 	select SUPERIO_ASPEED_AST2400
 	select IPMI_KCS
 	select IPMI_KCS_ROMSTAGE
-	select IPMI_OCP
 	select OCP_DMI
 	select VPD
 	select VPD_SMBIOS_VERSION

src/mainboard/ocp/deltalake/devicetree.cb

@@ -85,9 +85,6 @@ chip soc/intel/xeon_sp/cpx
 				register "bmc_i2c_address" = "0x20"
 				register "bmc_boot_timeout" = "60"
 			end
-			chip drivers/ocp/ipmi # OCP specific IPMI porting
-				device pnp ca2.1 on end
-			end
 		end # ISA bridge: Intel Device a245
 		device pci 1f.1 on end # p2sb
 		device pci 1f.2 on end # Memory controller: Intel Device a221