Remove needless .gitattribute entries with -text

[BjarniMax]

The first entry '* text=auto !eol' is enough to make sure all text files are correctly handling CRLF when cloning and pushing in Windows. In fact entries with '-text' attribute remove the necessary conversion and can therefore cause files with CRLF to be wrongly committed. In addition make sure shell script files and autotools-related files always have LF endings, and Windows batch files have CRLF endings.

[LouHafer]

Hey, @BjarniMax , I'll trust your Windows expertise. Apologies for the delay, other facets of my life had my attention for a year or so.