Remove consecutive blank lines

Some of them were introduced by mass-removal of S = WORKDIR/git assignments;
rather than try to fix up (or redo) just these, I've run this sed command over
the whole tree:

sed -i -z -E 's/([ \t\f\v\r]*\n){3,}/\n\n/g' `find . -name *.bb -o -name *.inc`

The rationale is that more than one empty line is wasting vertical screen space, and
does nothing for readability.

Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

recipes-multimedia/python3-picamera/python3-picamera_git.bb

@@ -14,7 +14,6 @@ RDEPENDS:${PN} = "python3-numbers   \
 SRC_URI = "git://git@github.com/waveform80/picamera.git;protocol=ssh;branch=master"
 SRCREV = "7e4f1d379d698c44501fb84b886fadf3fc164b70"
 
-
 inherit setuptools3
 
 COMPATIBLE_HOST = "null"