drm/i915/guc: Drop leftover preemption code

Remove unused enums and ctx_save_restore_disabled() function, leftover
from the legacy preemption removal.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205220243.27403-1-daniele.ceraolospurio@intel.com

drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c

@@ -18,15 +18,6 @@
 #include "i915_drv.h"
 #include "i915_trace.h"
 
-enum {
-	GUC_PREEMPT_NONE = 0,
-	GUC_PREEMPT_INPROGRESS,
-	GUC_PREEMPT_FINISHED,
-};
-#define GUC_PREEMPT_BREADCRUMB_DWORDS	0x8
-#define GUC_PREEMPT_BREADCRUMB_BYTES	\
-	(sizeof(u32) * GUC_PREEMPT_BREADCRUMB_DWORDS)
-
 /**
  * DOC: GuC-based command submission
  *
@@ -883,19 +874,6 @@ static void guc_client_free(struct intel_guc_client *client)
 	kfree(client);
 }
 
-static inline bool ctx_save_restore_disabled(struct intel_context *ce)
-{
-	u32 sr = ce->lrc_reg_state[CTX_CONTEXT_CONTROL + 1];
-
-#define SR_DISABLED \
-	_MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT | \
-			   CTX_CTRL_ENGINE_CTX_SAVE_INHIBIT)
-
-	return (sr & SR_DISABLED) == SR_DISABLED;
-
-#undef SR_DISABLED
-}
-
 static int guc_clients_create(struct intel_guc *guc)
 {
 	struct intel_guc_client *client;