Remove some premature odisabled

See https://github.com/Homebrew/brew/pull/11075#discussion_r610602507

Library/Homebrew/compat/early/download_strategy.rb

@@ -17,7 +17,7 @@ class AbstractDownloadStrategy
       rescue ArgumentError => e
         raise unless e.message.include?("timeout")
 
-        odisabled "`def _fetch` in a subclass of `CurlDownloadStrategy`"
+        odeprecated "`def _fetch` in a subclass of `CurlDownloadStrategy`"
         options.delete(:timeout)
         super(*args, **options)
       end

Library/Homebrew/livecheck/livecheck.rb

@@ -533,7 +533,7 @@ module Homebrew
         rescue ArgumentError => e
           raise unless e.message.include?("unknown keyword: cask")
 
-          odisabled "`def self.find_versions` in `#{strategy}` without a `cask` parameter"
+          odeprecated "`def self.find_versions` in `#{strategy}` without a `cask` parameter"
         end
         match_version_map = strategy_data[:matches]
         regex = strategy_data[:regex]