Unused test files should be removed

[martindholmes]

@sydb and I, trying to figure out how tests work, believe that the following files in the Test directory are never used:

• transcr1.xsl
• transcr3.xsl
• transcr4.xsl (and if this file goes, then surfaces.css can also go, because it's the only file that uses it)
• svg2svg.xsl
• study.svg
• tei2kml.xsl
• graves.xml (this is an invalid file, we think created by taking a P4 file and adding a P5 namespace)

Also:

• schemas.xml (this is an emacs-specific file that links xml files to their schemas; where these links are still relevant, they should be placed in the source xml files as xml-model declarations.)

• transcr2.xsl is used in an xml-stylesheet declaration, but we don't see how that could be part of a mechanical test.

• All of the extns.* files relate to SGML and DTD entity features which we shouldn't be bothering to test at this point. We could remove these and the corresponding Makefile section.

These files should be deleted, or moved to a "Defunct" directory.

[duncdrum]

can't happen quickly enough

[sydb]

Given that this git thing is a version control system, I say we can just delete them quite quickly. If it turns out we need one back, we can get it back.

[martindholmes]

Fair enough. You do have to know they existed in order to retrieve them, though. We sometimes move things to directories called Defunct or Obsolete instead.

[sydb]

Done, in 5 separate commits:

1. phase 1, 8a72c39: remove the 8 or so obvious files, the 1st list in the OP
2. phase 2a, 808cc03: remove schemas.xml
3. phase 2b, c0d87c7: remove transcr2.xsl
4. phase 2c, 0c30fdb: remove extns*
5. phase 2d, 8556607: remove parts of Makefile that used the extns* files (I had done this for part of phase 2c, but failed to add Makefile, so it did not get committed. Sigh.)