Fix Style/RedundantBegin type of Ameba issues

.ameba.yml

@@ -31,9 +31,6 @@ Lint/SpecFilename:
 # Style
 #
 
-Style/RedundantBegin:
-  Enabled: false
-
 Style/RedundantReturn:
   Enabled: false
 

src/invidious/user/preferences.cr

@@ -64,7 +64,6 @@ struct Preferences
     end
 
     def self.from_json(value : JSON::PullParser) : String
-      begin
       result = value.read_string
 
       if result.empty?
@@ -79,7 +78,6 @@ struct Preferences
         "light"
       end
     end
-    end
 
     def self.to_yaml(value : String, yaml : YAML::Nodes::Builder)
       yaml.scalar value

src/invidious/user/user.cr

@@ -17,11 +17,9 @@ struct Invidious::User
 
   module PreferencesConverter
     def self.from_rs(rs)
-      begin
       Preferences.from_json(rs.read(String))
     rescue ex
       Preferences.from_json("{}")
     end
   end
-  end
 end

src/invidious/yt_backend/extractors.cr

@@ -37,7 +37,6 @@ record AuthorFallback, name : String, id : String
 private module Parsers
   module BaseParser
     def parse(*args)
-      begin
       return parse_internal(*args)
     rescue ex
       LOGGER.debug("#{{{ @type.name }}}: Failed to render item.")
@@ -47,7 +46,6 @@ private module Parsers
       )
     end
   end
-  end
 
   # Parses a InnerTube videoRenderer into a SearchVideo. Returns nil when the given object isn't a videoRenderer
   #