git: simplify .gitattributes used by this project

.gitattributes

@@ -1,78 +1,12 @@
-# Auto detect text files and perform LF normalization
-# https://www.davidlaing.com/2012/09/19/customise-your-gitattributes-to-become-a-git-ninja/
 *          text=auto
-
-#
-# The above will handle all files NOT found below
-#
-
-# Documents
-*.bibtex   text diff=bibtex
-*.doc	        diff=astextplain
-*.DOC	        diff=astextplain
-*.docx          diff=astextplain
-*.DOCX          diff=astextplain
-*.dot           diff=astextplain
-*.DOT           diff=astextplain
-*.pdf           diff=astextplain
-*.PDF           diff=astextplain
-*.rtf           diff=astextplain
-*.RTF	        diff=astextplain
 *.md       text
-*.tex      text diff=tex
-*.adoc     text
-*.textile  text
-*.mustache text
-*.csv      text
-*.tab      text
-*.tsv      text
-*.txt      text
-*.sql      text
-
-# Graphics
 *.png      binary
-*.jpg      binary
-*.jpeg     binary
-*.gif      binary
-*.tif      binary
-*.tiff     binary
 *.ico      binary
-# SVG treated as an asset (binary) by default.
-*.svg      text
-# If you want to treat it as binary,
-# use the following line instead.
-# *.svg    binary
-*.eps      binary
-
-# Scripts
-*.bash     text eol=lf
-*.fish     text eol=lf
 *.sh       text eol=lf
-# These are explicitly windows files and should use crlf
 *.bat      text eol=crlf
 *.cmd      text eol=crlf
 *.ps1      text eol=crlf
-
-# Serialisation
 *.json     text
-*.toml     text
-*.xml      text
-*.yaml     text
-*.yml      text
-
-# Archives
-*.7z       binary
-*.gz       binary
-*.tar      binary
-*.tgz      binary
-*.zip      binary
-
-# Text files where line endings should be preserved
-*.patch    -text
-
-#
-# Exclude files from exporting
-#
 
 .gitattributes export-ignore
 .gitignore     export-ignore