Remove only right indent when using displayquote and csquotes

Question

Problem:

Removing right indent when using displayquote in csquotes.

Minimal Working Example (MWE):

\documentclass{article}
\usepackage{showframe}
\usepackage{csquotes}

\renewcommand*\ShowFrameColor{\color{red}}

\begin{document}

\begin{displayquote}
"If you want to design intervention X [for the purpose/function Y in context Z], then you are best advised to give that intervention the characteristics A, B, and C [substantive emphasis], and to do that via procedures K, L, and M [procedural emphasis], because of arguments P, Q, and R."
\end{displayquote}

\end{document}

Output:

Desired output:

No right indentation for the quote.

Answer 1

I think csquotes just uses the standard quote environment internally as the basis for this. So you can just redefine that to remove the right indent:

\renewenvironment{quote}
{\list{}{}%
 \item\relax}
{\endlist}