Remove signature from block work score

tips/TIP-0046/tip-0046.md

@@ -495,8 +495,7 @@ Let the work score of a _Basic Block_ be defined as follows.
     `Work Score Parameters::Data Byte * Candidacy Announcement Size` where:
     - `Candidacy Announcement Size` is the size of the serialized _Candidacy Announcement_.
   - If the type is _Transaction_ the work score is defined in [TIP-45 (Work Score)](../TIP-0045/tip-0045.md#work-score).
-- Let `Signature Score` be the work score of the `Signature`.
-- Return `Work Score Parameters::Block + Payload Score + Signature Score`.
+- Return `Work Score Parameters::Block + Payload Score`.
 
 ## Validation Block