chore: omit lifetimes

Author: bestmike007

Diff for: stackslib/src/clarity_vm/clarity.rs

@@ -1590,7 +1590,7 @@ impl<'a> ClarityBlockConnection<'a, '_> {
         })
     }
 
-    pub fn start_transaction_processing<'c>(&'c mut self) -> ClarityTransactionConnection<'c, 'c> {
+    pub fn start_transaction_processing(&mut self) -> ClarityTransactionConnection {
         let store = &mut self.datastore;
         let cost_track = &mut self.cost_track;
         let header_db = self.header_db;