remove unnecessary default value

Author: Funkest

README.md

@@ -289,9 +289,9 @@ public static bool operator !(Foo x) => !x.value;
 ```csharp
 public static GroupId New();
 public static GroupId NewGroupId();
-// .NET 9.0+
-public static GroupId New(bool uuidV7 = false);
-public static GroupId NewGroupId(bool uuidV7 = false);
+// overload .NET 9.0+
+public static GroupId New(bool uuidV7);
+public static GroupId NewGroupId(bool uuidV7);
 ```
 
 Second parameter `UnitGenerateOptions options` can configure which method to implement, default is `None`.

src/UnitGenerator/SourceGenerator.cs

@@ -555,12 +555,12 @@ public bool TryFormat (Span<byte> utf8Destination, out int bytesWritten, ReadOnl
         }
 
 #if NET9_0_OR_GREATER        
-        public static {{unitTypeName}} New(bool uuidV7 = false)
+        public static {{unitTypeName}} New(bool uuidV7)
         {
             return new {{unitTypeName}}(uuidV7 ? Guid.CreateVersion7() : Guid.NewGuid());
         }
 
-        public static {{unitTypeName}} New{{unitTypeName}}(bool uuidV7 = false)
+        public static {{unitTypeName}} New{{unitTypeName}}(bool uuidV7)
         {
             return new {{unitTypeName}}(uuidV7 ? Guid.CreateVersion7() : Guid.NewGuid());
         }