x86/pconfig: Remove unused MKTME pconfig code

Code supporting Intel PCONFIG targets was an early piece of enabling
for MKTME (Multi-Key Total Memory Encryption).

Since MKTME feature enablement did not follow into the kernel, remove
the unused PCONFIG code.

Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/all/4ddff30d466785b4adb1400f0518783012835141.1715054189.git.alison.schofield%40intel.com

Author: AlisonSchofield

arch/x86/include/asm/intel_pconfig.h

@@ -34,7 +34,7 @@ obj-$(CONFIG_PROC_FS)			+= proc.o
 
 obj-$(CONFIG_IA32_FEAT_CTL)		+= feat_ctl.o
 ifdef CONFIG_CPU_SUP_INTEL
-obj-y					+= intel.o intel_pconfig.o tsx.o
+obj-y					+= intel.o tsx.o
 obj-$(CONFIG_PM)			+= intel_epb.o
 endif
 obj-$(CONFIG_CPU_SUP_AMD)		+= amd.o