chore: remove repetitive words (#1739)

Co-authored-by: Erik Kaneda <erik@risczero.com>

risc0/build/src/lib.rs

@@ -96,7 +96,7 @@ impl GuestListEntry {
     }
 
     fn codegen_consts(&self) -> String {
-        // Quick check for '#' to avoid injection of arbitrary Rust code into the the
+        // Quick check for '#' to avoid injection of arbitrary Rust code into the
         // method.rs file. This would not be a serious issue since it would only
         // affect the user that set the path, but it's good to add a check.
         if self.path.contains('#') {

risc0/zkvm/src/host/server/exec/executor.rs

@@ -188,7 +188,7 @@ impl<'a> ExecutorImpl<'a> {
         })?;
         let elapsed = start_time.elapsed();
 
-        // Set the session_journal to the committed data iff the the guest set a non-zero output.
+        // Set the session_journal to the committed data iff the guest set a non-zero output.
         let session_journal = result
             .output_digest
             .and_then(|digest| (digest != Digest::ZERO).then(|| journal.buf.take()));