Remove unused read/write domains

Change-Id: I434e3ae11d59b23b3d33a2385f5c31c249039279
diff --git a/src/magma/drm_command_buffer.cc b/src/magma/drm_command_buffer.cc
index 68f59fb..6c78afb 100644
--- a/src/magma/drm_command_buffer.cc
+++ b/src/magma/drm_command_buffer.cc
@@ -85,9 +85,6 @@
          dst_reloc->offset = src_reloc->offset; // offset in the batch buffer;
          dst_reloc->target_resource_index = src_reloc->target_handle;
          dst_reloc->target_offset = src_reloc->delta; // offset in the target buffer
-         dst_reloc->read_domains_bitfield =
-             src_reloc->read_domains; // memory domains in which the target is readable
-         dst_reloc->write_domains_bitfield = src_reloc->write_domain; // memory
       }
 
       res_reloc_base += num_relocations;
diff --git a/tests/unit_tests/test_drm_command_buffer.cc b/tests/unit_tests/test_drm_command_buffer.cc
index 3156031..4ab4138 100644
--- a/tests/unit_tests/test_drm_command_buffer.cc
+++ b/tests/unit_tests/test_drm_command_buffer.cc
@@ -180,16 +180,12 @@
             EXPECT_EQ(reloc->offset, exec_relocs_0[i].offset);
             EXPECT_EQ(reloc->target_resource_index, exec_relocs_0[i].target_handle);
             EXPECT_EQ(reloc->target_offset, exec_relocs_0[i].delta);
-            EXPECT_EQ(reloc->read_domains_bitfield, exec_relocs_0[i].read_domains);
-            EXPECT_EQ(reloc->write_domains_bitfield, exec_relocs_0[i].write_domain);
             reloc++;
          }
          for (uint32_t i = 0; i < exec_relocs_1.size(); i++) {
             EXPECT_EQ(reloc->offset, exec_relocs_1[i].offset);
             EXPECT_EQ(reloc->target_resource_index, exec_relocs_1[i].target_handle);
             EXPECT_EQ(reloc->target_offset, exec_relocs_1[i].delta);
-            EXPECT_EQ(reloc->read_domains_bitfield, exec_relocs_1[i].read_domains);
-            EXPECT_EQ(reloc->write_domains_bitfield, exec_relocs_1[i].write_domain);
             reloc++;
          }
       }