disable shell commands (using \includegraphics *.pdf instead of \includesvg)

This reverts commit 3aeae8f03bff544cadefe85b9a39bf35ba3d1e6a.

latexmkrc

@@ -1,7 +1,3 @@
 $out_dir = 'latex-build';
-
-# > Package svg Warning: You didn't enable `shell escape' (or `write18') so it wasn't possible to launch the Inkscape export [...]
-$pdflatex = "pdflatex -shell-escape %O %S";
-
 $pdf_mode = 1;  # tex -> pdf via pdflatex
 $pdf_previewer = "start zathura";