Remove bogus compile instruction in Linux/README

[artagnon]

There is no directory called libusb-1.0 in the source tree, and the
first instruction already asks us to get the distribution's version of
libusb.

[Benjamin-Dobell]

Looks like I stuffed up a merge somewhere. The fix you've reported isn't quite what I originally intended, but I'll sort it out. Thanks for letting me know!

[jwmh]

Also, the instructions in the Linux README differ from the one on this page:
https://github.com/Benjamin-Dobell/Heimdall/wiki/Bulding-from-Source

Those instructions say to run:
$ ./autogen.sh
$ ./configure
$ make

(whereas the Linux README doesn't mention running ./autogen.sh )

[Benjamin-Dobell]

Wow, I didn't even realise anyone had written anything on the wiki!

Running:

./autogen.sh

is unnecessary as I run autogen.sh before I push to Github. Running it again won't cause any harm as long as the necessary tools are installed on your system. However, to avoid confusion I've updated the wiki and removed the line.

[Benjamin-Dobell]

I believe this is addressed in the 1.4.0 release (https://github.com/Benjamin-Dobell/Heimdall/tree/v1.4.0).