tools: remove astyle configuration file

Also removes sed pattern style, since this was only supplementary to astyle, while uncrustify can handle this case itself.

.astylerc

@@ -1,13 +0,0 @@
---style=1tbs
---indent=spaces=4
---indent-switches
---indent-labels
---indent-col1-comments
---min-conditional-indent=0
---unpad-paren
---pad-oper
---pad-header
---break-closing-brackets
---add-brackets
---align-pointer=name
---max-code-length=100

keyword_space.sed

@@ -1,7 +0,0 @@
-s/\bif(/if (/
-s/\bswitch(/switch (/
-s/\bcase(/case (/
-s/\bwhile(/while (/
-s/\bfor(/for (/
-s/\bdo(/do (/
-s/! /!/