diff --git a/test_structelem.tex b/test_structelem.tex
deleted file mode 100644
index f493731..0000000
--- a/test_structelem.tex
+++ /dev/null
@@ -1,31 +0,0 @@
-% !Mode:: "TeX:DE:UTF-8:Main"
-\PassOptionsToPackage{enable-debug,check-declarations}{expl3}
-\DocumentMetadata{uncompress,pdfversion=2.0,testphase = phase-I}
-\RequirePackage{expl3}
-\documentclass{article}
-\usepackage{unicode-math}
-\usepackage{amsmath}
-\usepackage{luamml}
-% \RegisterFamilyMapping\symsymbols{oms}
-% \RegisterFamilyMapping\symletters{oml}
-% \RegisterFamilyMapping\symlargesymbols{omx}
-\ExplSyntaxOn
-
-\luamml_flag_structelem:
-\int_new:N \g__my_mathml_int
-\luamml_set_filename:n {
-  \immediateassignment \int_gincr:N \g__my_mathml_int
-  \jobname -formula- \int_use:N \g__my_mathml_int .xml
-}
-\ExplSyntaxOff
-\begin{document}
-\tagstructbegin{tag=Document}
-\tagstructbegin{tag=Formula}
-\[
-  ax^2+bx+c=0,\quad
-  \int_1^n f(x) = \sum_{i=1}^m x^4 dx
-\]
-\tagstructend
-\tagstructend
-
-\end{document}
diff --git a/test_tex.tex b/test_tex.tex
deleted file mode 100644
index d3aedaa..0000000
--- a/test_tex.tex
+++ /dev/null
@@ -1,48 +0,0 @@
-\DocumentMetadata{
-  uncompress,
-  pdfversion = 2.0,
-  testphase = phase-I,
-}
-\documentclass{article}
-\usepackage{luamml-demo}
-
-\usepackage{unicode-math}
-
-\begin{document}
-\tagstructbegin{tag=Document}
-\LuaMMLTagAF{} {
-\[
-  \begin{pmatrix}
-    1 & 0 & 0 \\
-    0 & 1 & 0 \\
-    0 & 0 & 1
-  \end{pmatrix}
-  =
-  \begin{cases}
-    1 & $if $a=b\\
-    2 & $else$
-  \end{cases}
-\]
-}
-\LuaMMLTagAF{} {
-\[
-  x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}.
-\]
-}
-\LuaMMLTagAF{} {
-\[
-  \sum_a\underline c\dot bc'
-\]
-}
-
-\LuaMMLTagAF{} {
-\begin{align}
-  abc&=def & e^{\mathrm{i}\pi}&=-1\\
-  \Big(1+2&=3\Big)\\
-  5
-\end{align}
-}
-
-Es gilt \LuaMMLTagAF{}{$\sin(x)-\sin(x+2\pi)=0$}.
-\tagstructend
-\end{document}