I like Davido's solution but prefer this for clarity, if not the extra characters (anti-golfing?)- 
For (0 .. $#{$msg} ) {

    If (msg->[$_] =~ m/\QContent-Transfer-Encoding: 7bit\E/i) {
        If ( next line is blank ) {
            Splice 
            last;

        }
    }    

}

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In reply to Re: remove a blank line after a string by spongeboy
in thread remove a blank line after a string by johnajb

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