x86/microcode: Remove unused struct cpu_info_ctx

This looks unused since

  2071c0ae ("x86/microcode: Simplify init path even more")
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240506004300.770564-1-linux@treblig.org

arch/x86/kernel/cpu/microcode/core.c

@@ -60,11 +60,6 @@ module_param(force_minrev, bool, S_IRUSR | S_IWUSR);
  */
 struct ucode_cpu_info		ucode_cpu_info[NR_CPUS];
 
-struct cpu_info_ctx {
-	struct cpu_signature	*cpu_sig;
-	int			err;
-};
-
 /*
  * Those patch levels cannot be updated to newer ones and thus should be final.
  */