Remove all files pertaining to match-parameters article

This article is going to be re-written with real-world examples of image
matching using the YouView UI, and in general be simplified to show only
the effects of changing the parameters, not *how* the template matching
works in general.
Rewritten match-parameters article with new real-world example images

The rewritten article is much more concise than the previous offering.
It is designed to be more of a quick reference documentation of the
parameters than an in-depth formal article on the "hows and whys" of
the image manipulation involved.
match-parameters: Formatting and re-ordering

Use floating images instead of tables.

Add headings ("False positives" and "The normed-absdiff confirm method")
to give some structure and break up the wall of text & images.

Don't introduce the "false source" image until the "False positives"
section. This allows us to show the "true source" image only once
instead of twice.
match-parameters: Edit wording.
match-parameters: layout/alignment change

This commit makes the figures align to the right hand side of the
containers, along with their labels. This means that the body text can
happily align left and wrap around the images which makes for easier
reading. The increase to .clear .figure margin makes the figures sit
slightly lower so that visually the text comes first.

The additional clear container was required in the article to prevent
the literal text block (the command) from overlaying on of the figures.
match-parameters: Minor style fixes

"text-align: left" isn't necessary on the ".clear" containers.
And now that the figures are floated right instead of left, the right
margin should be zero, with a left margin to separate it from the text.
Merge branch 'rework-match-parameters-article'

Rewritten match-parameters article with new real-world example images.

* rework-match-parameters-article:
  match-parameters: Minor style fixes
  match-parameters: layout/alignment change
  match-parameters: Edit wording.
  match-parameters: Formatting and re-ordering
  Rewritten match-parameters article with new real-world example images
  Remove all files pertaining to match-parameters article