Simplify debug output: don't show owner for type parameters

ICSharpCode.Decompiler/TypeSystem/Implementation/AbstractTypeParameter.cs

@@ -370,7 +370,7 @@ namespace ICSharpCode.Decompiler.TypeSystem.Implementation
 		
 		public override string ToString()
 		{
-			return this.ReflectionName + " (owner=" + owner + ")";
+			return this.ReflectionName;
 		}
 	}
 }

ICSharpCode.Decompiler/TypeSystem/Implementation/MetadataTypeParameter.cs

@@ -230,7 +230,7 @@ namespace ICSharpCode.Decompiler.TypeSystem.Implementation
 
 		public override string ToString()
 		{
-			return $"{MetadataTokens.GetToken(handle):X8} Index={Index} Owner={Owner}";
+			return $"{MetadataTokens.GetToken(handle):X8} {ReflectionName}";
 		}
 	}
 }