habanalabs: remove unused hash

Remove an old hash that is not in use anymore.
Signed-off-by: NOmer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NOded Gabbay <oded.gabbay@gmail.com>

drivers/misc/habanalabs/habanalabs.h

@@ -780,7 +780,6 @@ struct hl_va_range {
  * struct hl_ctx - user/kernel context.
  * @mem_hash: holds mapping from virtual address to virtual memory area
  *		descriptor (hl_vm_phys_pg_list or hl_userptr).
- * @mmu_phys_hash: holds a mapping from physical address to pgt_info structure.
  * @mmu_shadow_hash: holds a mapping from shadow address to pgt_info structure.
  * @hpriv: pointer to the private (Kernel Driver) data of the process (fd).
  * @hdev: pointer to the device structure.
@@ -814,7 +813,6 @@ struct hl_va_range {
  */
 struct hl_ctx {
 	DECLARE_HASHTABLE(mem_hash, MEM_HASH_TABLE_BITS);
-	DECLARE_HASHTABLE(mmu_phys_hash, MMU_HASH_TABLE_BITS);
 	DECLARE_HASHTABLE(mmu_shadow_hash, MMU_HASH_TABLE_BITS);
 	struct hl_fpriv		*hpriv;
 	struct hl_device	*hdev;

drivers/misc/habanalabs/mmu.c

@@ -502,7 +502,6 @@ int hl_mmu_ctx_init(struct hl_ctx *ctx)
 		return 0;
 
 	mutex_init(&ctx->mmu_lock);
-	hash_init(ctx->mmu_phys_hash);
 	hash_init(ctx->mmu_shadow_hash);
 
 	return dram_default_mapping_init(ctx);