Remove particular characters from some string

Question

Consider this code:

\documentclass[12pt]{article}
\usepackage{arabxetex}
\usepackage{newunicodechar}

\begin{document}
    \begin{arab}
إِبرٰهۦمَِ
    \end{arab}
\end{document}

Output:

The arabic string إِبرٰهۦمَِ contains so-called arabic small yeh (U+06E6) or maybe arabic small high yeh (U+06E7), I am not quite sure. Imagine I have a long string which contains many of these characters and I want to strip them down from the output, i.e. the small yeh characters don't show up in the output document. I tried newunicodechar package but couldn't get it done so far. Does anyone know how to do this properly?

In general: How to do "if encounter certain character show nothing?"

Answer 1

The character in the input is U+06E6 defining that to do nothing changes the output, but I can not read either form so I can not tell if this is a good result.

\documentclass[12pt]{article}
\usepackage{arabxetex}
\usepackage{newunicodechar}
\newunicodechar{ۦ}{}
\begin{document}
    \begin{arab}
إِبرٰهۦمَِ
    \end{arab}

\end{document}