The Chronicle announced in this morning’s edition that it is reducing the number of pages in the Sunday comics section from six to four and dropping five comics — Mister Boffo, the Fusco Brothers, Brevity, Tokyopop and Sherman’s Lagoon. Dilbert will move to the business section, where it is located Monday through Saturday. The Chron is adding Candorville, which had a successful test this spring. The changes were made after the paper asked readers to rate the comics. The Chron said it got 13,000 responses.