remove non needed logs

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/MaterialGraphPreviewGenerator.cs

                             s_Meshes[3] = meshFilter.sharedMesh;
                             break;
                         default:
-                            Debug.Log("Something is wrong, weird object found: " + t.name);
+                            Debug.LogWarning("Something is wrong, weird object found: " + t.name);
                             break;
                     }
                 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/PreviewManager.cs

                             ShaderUtil.ClearShaderErrors(m_UberShader);
                             ShaderUtil.UpdateShaderAsset(m_UberShader, k_EmptyShader);
                         }
-                        else
-                        {
-                            Debug.Log(message);
-                        }
 
                         foreach (var node in uberNodes)
                         {
                         EditorUtility.DisplayProgressBar("Shader Graph", string.Format("Compiling preview shaders ({0}/{1})", i, count), 0f);
                     }
                     sw.Stop();
-                    Debug.LogFormat("Compiled preview shaders in {0} seconds", sw.Elapsed.TotalSeconds);
+                    //Debug.LogFormat("Compiled preview shaders in {0} seconds", sw.Elapsed.TotalSeconds);
                 }
                 finally
                 {
             var message = "RecreateShader: " + node.GetVariableNameForNode() + Environment.NewLine + shaderData.shaderString;
             if (MaterialGraphAsset.ShaderHasError(shaderData.shader))
                 Debug.LogWarning(message);
-            else
-                Debug.Log(message);
         }
 
         void DestroyPreview(Guid nodeGuid, PreviewRenderData previewRenderData)

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Views/PreviewSceneResources.cs

                             s_Meshes[3] = meshFilter.sharedMesh;
                             break;
                         default:
-                            Debug.Log("Something is wrong, weird object found: " + t.name);
+                            Debug.LogWarning("Something is wrong, weird object found: " + t.name);
                             break;
                     }
                 }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Importers/ShaderGraphImporter.cs

 
             var name = Path.GetFileNameWithoutExtension(path);
             var shaderString = graph.GetShader(string.Format("graphs/{0}", name), GenerationMode.ForReals, out configuredTextures);
-            Debug.Log(shaderString);
+            //Debug.Log(shaderString);
             return shaderString;
         }
         catch (Exception)

MaterialGraphProject/Assets/UnityShaderEditor/Editor/SerializableGraph/Implementation/SerializableGraph.cs

             m_AddedEdges.Add(newEdge);
             AddEdgeToNodeEdges(newEdge);
 
-            Debug.LogFormat("Connected edge: {0} -> {1} ({2} -> {3})\n{4}", newEdge.outputSlot.nodeGuid, newEdge.inputSlot.nodeGuid, fromNode.name, toNode.name, Environment.StackTrace);
+            //Debug.LogFormat("Connected edge: {0} -> {1} ({2} -> {3})\n{4}", newEdge.outputSlot.nodeGuid, newEdge.inputSlot.nodeGuid, fromNode.name, toNode.name, Environment.StackTrace);
             return newEdge;
         }
 

MaterialGraphProject/Assets/UnityShaderEditor/Editor/SerializableGraph/Implementation/SerializableNode.cs

 
             foreach (var invalidSlot in invalidSlots.ToArray())
             {
-                Debug.LogFormat("Removing Invalid MaterialSlot: {0}", invalidSlot);
+                Debug.LogWarningFormat("Removing Invalid MaterialSlot: {0}", invalidSlot);
                 RemoveSlot(invalidSlot);
             }
         }