Prelim: Some tidying bits

packaging/deb/themes/cmake-build-notes.txt

@@ -1,6 +0,0 @@
-Testing using prefix and destdir:
-
-cmake -DCMAKE_INSTALL_PREFIX=/usr ..
-make DESTDIR=./out all install
-
-Will need to reference the above to update Debian build

tools/bldtheme/bldtheme.py

@@ -34,8 +34,6 @@ def main():
         raise NotADirectoryError(f"{input_dir} is not a directory")
 
     if not output_dir.is_dir():
-        from warnings import warn
-        warn(f"{output_dir} is not a directory, attempting to create it")
         output_dir.mkdir(parents=True)
 
     for file_path in input_dir.glob("*.*.png"):