message: Remove redundant lines in grammar
diff: @@ -1722,8 +1722,7 @@ Put specific matches for particular LaTeX keyword.functions before the last two
  (?:al)?(?:p|s|t|author|year(?:par)?|title)?[ANP]*
  \*? # Optional Unabreviated
  )
  - (?:(\[)[^\]]*(\]))? # Optional
  - (?:(\[)[^\]]*(\]))? # Arguments
  + (?:(\[)[^\]]*(\])){0,2} # Optional Arguments
  (\{) # Opening Bracket
  </string>
  <key>captures</key>
  @@ -1749,16 +1748,6 @@ Put specific matches for particular LaTeX keyword.functions before the last two
  <string>punctuation.definition.arguments.optional.end.latex</string>
  </dict>
  <key>5</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.arguments.optional.begin.latex</string>
  - </dict>
  - <key>6</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.arguments.optional.end.latex</string>
  - </dict>
  - <key>7</key>
  <dict>
  <key>name</key>
  <string>punctuation.definition.arguments.begin.latex</string>
  