Code Style: use "#pragma once" in some newer headers

Those were missing from the previous commit, because these headers
only exist in the `master` and not in the `blender-v2.90-release` branch.

source/blender/blenlib/BLI_multi_value_map.hh

@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BLI_MULTI_VALUE_MAP_HH__
-#define __BLI_MULTI_VALUE_MAP_HH__
+#pragma once
 
 /** \file
  * \ingroup bli
@@ -130,5 +129,3 @@ template<typename Key, typename Value> class MultiValueMap {
 };
 
 }  // namespace blender
-
-#endif /* __BLI_MULTI_VALUE_MAP_HH__ */

source/blender/blenlib/BLI_vector_adaptor.hh

@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __BLI_VECTOR_ADAPTOR_HH__
-#define __BLI_VECTOR_ADAPTOR_HH__
+#pragma once
 
 /** \file
  * \ingroup bli
@@ -101,5 +100,3 @@ template<typename T> class VectorAdaptor {
 };
 
 }  // namespace blender
-
-#endif /* __BLI_VECTOR_ADAPTOR_HH__ */

source/blender/nodes/NOD_node_tree_dependencies.hh

@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __NOD_NODE_TREE_DEPENDENCIES_H__
-#define __NOD_NODE_TREE_DEPENDENCIES_H__
+#pragma once
 
 #include "BLI_vector_set.hh"
 
@@ -75,5 +74,3 @@ class NodeTreeDependencies {
 NodeTreeDependencies find_node_tree_dependencies(bNodeTree &ntree);
 
 }  // namespace blender::nodes
-
-#endif /* __NOD_NODE_TREE_DEPENDENCIES_H__ */

source/blender/simulation/intern/particle_mesh_emitter.hh

@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __SIM_PARTICLE_MESH_EMITTER_HH__
-#define __SIM_PARTICLE_MESH_EMITTER_HH__
+#pragma once
 
 #include "simulation_solver_influences.hh"
 
@@ -48,5 +47,3 @@ class ParticleMeshEmitter final : public ParticleEmitter {
 };
 
 }  // namespace blender::sim
-
-#endif /* __SIM_PARTICLE_MESH_EMITTER_HH__ */

source/blender/simulation/intern/simulation_solver_influences.hh

@@ -14,8 +14,7 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#ifndef __SIM_SIMULATION_SOLVER_INFLUENCES_HH__
-#define __SIM_SIMULATION_SOLVER_INFLUENCES_HH__
+#pragma once
 
 #include "BLI_float3.hh"
 #include "BLI_float4x4.hh"
@@ -233,5 +232,3 @@ struct ParticleEventFilterContext {
 };
 
 }  // namespace blender::sim
-
-#endif /* __SIM_SIMULATION_SOLVER_INFLUENCES_HH__ */