Remove paired double quotes and commas in between

cleancsv.awk

#!/usr/bin/awk -f
# http://unix.stackexchange.com/questions/48672/remove-comma-between-the-quotes-only-in-a-comma-delimited-file
BEGIN {
  FS = "\""
  OFS = ""
}
{
  for (i = 2; i <= NF; i += 2) {
    gsub(",", "", $i) 
  }
  print $0
}