Revert "org.el (org-set-font-lock-defaults): Don't activate links in source code blocks and fixed-width regions"

This reverts commit f983cf172939c1885e4808fe695785eb7dd763d6.

lisp/org.el

@@ -5753,14 +5753,13 @@ needs to be inserted at a specific position in the font-lock sequence.")
 		 '(1 'org-special-keyword t)
 		 '(3 'org-property-value t))
 	   ;; Links
-	   (unless (or (org-in-src-block-p t) (org-in-fixed-width-region-p))
-	     (if (memq 'tag lk) '(org-activate-tags (1 'org-tag prepend)))
-	     (if (memq 'angle lk) '(org-activate-angle-links (0 'org-link t)))
-	     (if (memq 'plain lk) '(org-activate-plain-links))
-	     (if (memq 'bracket lk) '(org-activate-bracket-links (0 'org-link t)))
-	     (if (memq 'radio lk) '(org-activate-target-links (0 'org-link t)))
-	     (if (memq 'date lk) '(org-activate-dates (0 'org-date t)))
-	     (if (memq 'footnote lk) '(org-activate-footnote-links)))
+	   (if (memq 'tag lk) '(org-activate-tags (1 'org-tag prepend)))
+	   (if (memq 'angle lk) '(org-activate-angle-links (0 'org-link t)))
+	   (if (memq 'plain lk) '(org-activate-plain-links))
+	   (if (memq 'bracket lk) '(org-activate-bracket-links (0 'org-link t)))
+	   (if (memq 'radio lk) '(org-activate-target-links (0 'org-link t)))
+	   (if (memq 'date lk) '(org-activate-dates (0 'org-date t)))
+	   (if (memq 'footnote lk) '(org-activate-footnote-links))
 	   '("^&?%%(.*\\|<%%([^>\n]*?>" (0 'org-sexp-date t))
 	   '(org-hide-wide-columns (0 nil append))
 	   ;; TODO keyword