chore: remove unnecessary bad-code-excerpt-skip-patterns (#2745)

* chore: remove unnecessary bad-code-excerpt-skip-patterns

* chore(ts/style-guide): fix BAD FILENAME in code-tabs

Author: chalin

public/docs/ts/latest/guide/style-guide.jade

@@ -1363,15 +1363,15 @@ a(href="#toc") Back to top
   style-guide/ts/04-10/app/shared/filter-text/filter-text.component.ts,
   style-guide/ts/04-10/app/shared/filter-text/filter-text.service.ts,
   style-guide/ts/04-10/app/heroes/heroes.component.ts,
-  style-guide/ts/04-10/app/heroes/heroes.component.html,
+  style-guide/ts/04-10/app/heroes/heroes.component.html
   `,
   `,,,`,
   `app/shared/shared.module.ts,
   app/shared/init-caps.pipe.ts,
   app/shared/filter-text/filter-text.component.ts,
   app/shared/filter-text/filter-text.service.ts,
   app/heroes/heroes.component.ts,
-  app/heroes/heroes.component.html,
+  app/heroes/heroes.component.html
   `)
 :marked
 

scripts/config/bad-code-excerpt-skip-patterns.txt

@@ -1,8 +1,5 @@
 # Comments & blank lines are ignored. Entry format (make pattern as specific as possible):
 # <grep-pattern-to-match-file-path> # reason / issue number
 
-/[jt]s/.*/api/router-deprecated/    # Obsolete API entries. No issue open yet.
-/ts/latest/guide/style-guide.html   # https://github.com/angular/angular.io/issues/2123
-/ts/latest/guide/upgrade.html       # In a transient state until RC6 - @filipe.silva
 /[jt]s/.*/api/forms/index/NG_VALIDATORS-let.html    # RC6 contains broken example tags
 /dart/latest/tutorial/toh-pt5.html