diff --git a/tests/roots/test-build-htmlhelp/make.bat b/tests/roots/test-build-htmlhelp/make.bat
deleted file mode 100644
index 333fd1439..000000000
--- a/tests/roots/test-build-htmlhelp/make.bat
+++ /dev/null
@@ -1,64 +0,0 @@
-@echo off
-setlocal
-
-pushd %~dp0
-
-set this=%~n0
-
-if not defined PYTHON set PYTHON=py
-
-if not defined SPHINXBUILD (
-    %PYTHON% -c "import sphinx" > nul 2> nul
-    if errorlevel 1 (
-        echo Installing sphinx with %PYTHON%
-        %PYTHON% -m pip install sphinx
-        if errorlevel 1 exit /B
-    )
-    set SPHINXBUILD=%PYTHON% -c "import sphinx.cmd.build, sys; sys.exit(sphinx.cmd.build.main())"
-)
-
-rem Search for HHC in likely places
-set HTMLHELP=
-where hhc /q && set HTMLHELP=hhc && goto :skiphhcsearch
-where /R ..\externals hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"
-if not exist "%HTMLHELP%" where /R "%ProgramFiles(x86)%" hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"
-if not exist "%HTMLHELP%" where /R "%ProgramFiles%" hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"
-if not exist "%HTMLHELP%" (
-    echo.
-    echo.The HTML Help Workshop was not found.  Set the HTMLHELP variable
-    echo.to the path to hhc.exe or download and install it from
-    echo.http://msdn.microsoft.com/en-us/library/ms669985
-    exit /B 1
-)
-echo hhc.exe path: %HTMLHELP%
-
-if "%BUILDDIR%" EQU "" set BUILDDIR=build
-
-%SPHINXBUILD% >nul 2> nul
-if errorlevel 9009 (
-    echo.
-    echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
-    echo.installed, then set the SPHINXBUILD environment variable to point
-    echo.to the full path of the 'sphinx-build' executable. Alternatively you
-    echo.may add the Sphinx directory to PATH.
-    popd
-    exit /B 1
-)
-
-set SPHINXOPTS=-D html_theme_options.body_max_width=none %SPHINXOPTS%
-
-cmd /S /C "%SPHINXBUILD% %SPHINXOPTS% -bhtmlhelp -dbuild\doctrees . "%BUILDDIR%\htmlhelp"
-
-"%HTMLHELP%" "%BUILDDIR%\htmlhelp\test.hhp"
-rem hhc.exe seems to always exit with code 1, reset to 0 for less than 2
-if not errorlevel 2 cmd /C exit /b 0
-
-echo.
-if errorlevel 1 (
-    echo.Build failed (exit code %ERRORLEVEL%^), check for error messages
-    echo.above.  Any output will be found in %BUILDDIR%\%1
-) else (
-    echo.Build succeeded. All output should be in %BUILDDIR%\%1
-)
-
-popd
diff --git a/tests/roots/test-domain-cpp/conf.py b/tests/roots/test-domain-cpp/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-domain-cpp/conf.py
+++ b/tests/roots/test-domain-cpp/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-domain-js/conf.py b/tests/roots/test-domain-js/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-domain-js/conf.py
+++ b/tests/roots/test-domain-js/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-domain-py/conf.py b/tests/roots/test-domain-py/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-domain-py/conf.py
+++ b/tests/roots/test-domain-py/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-footnotes/conf.py b/tests/roots/test-footnotes/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-footnotes/conf.py
+++ b/tests/roots/test-footnotes/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-manpage_url/conf.py b/tests/roots/test-manpage_url/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-manpage_url/conf.py
+++ b/tests/roots/test-manpage_url/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-maxlistdepth/conf.py b/tests/roots/test-maxlistdepth/conf.py
index b04872cea..a3b12a228 100644
--- a/tests/roots/test-maxlistdepth/conf.py
+++ b/tests/roots/test-maxlistdepth/conf.py
@@ -1,4 +1,3 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
 
 latex_elements = {
diff --git a/tests/roots/test-numfig/conf.py b/tests/roots/test-numfig/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-numfig/conf.py
+++ b/tests/roots/test-numfig/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-toctree-empty/conf.py b/tests/roots/test-toctree-empty/conf.py
index 171892c11..bda61da95 100644
--- a/tests/roots/test-toctree-empty/conf.py
+++ b/tests/roots/test-toctree-empty/conf.py
@@ -1,3 +1,2 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
 templates_path = ['_templates']
diff --git a/tests/roots/test-toctree-glob/conf.py b/tests/roots/test-toctree-glob/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-toctree-glob/conf.py
+++ b/tests/roots/test-toctree-glob/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']
diff --git a/tests/roots/test-toctree-maxdepth/conf.py b/tests/roots/test-toctree-maxdepth/conf.py
index 46bb290c9..a45d22e28 100644
--- a/tests/roots/test-toctree-maxdepth/conf.py
+++ b/tests/roots/test-toctree-maxdepth/conf.py
@@ -1,2 +1 @@
-html_theme = 'classic'
 exclude_patterns = ['_build']