Remove break point and other unused rows from the result of morphological analysis
Source:R/moranajp.R
      remove_brk.RdInternal function for moranajp_all().
Arguments
- tbl
 A tibble or data.frame.
- method
 A text. Method to use: "mecab", "ginza", "sudachi_a", "sudachi_b", "sudachi_c", or "chamame". "a", "b" and "c" specify the mode of splitting. "a" split shortest, "b" middle and "c" longest. See https://github.com/WorksApplications/Sudachi for detail. "chamame" use https://chamame.ninjal.ac.jp/ and rvest.
- brk
 A string of break point