Remove travis workarounds for previous build system

With proper dependencies and parallel safety, we can just
'make check -j N' directly. Also build quietly so that we
only get build warnings, errors and test results in the output.
Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>

.travis.yml

@@ -11,6 +11,4 @@ addons:
             - libjudy-dev libvorbis-dev libportaudio-dev libtalloc-dev
 
 script:
-        - make config.h
-        - make -j2
-        - make -j2 -k check
+        - make -j2 -k check quiet=1