bitbake: build/utils: Drop bb.build.FuncFailed

Its hard to see what this exception adds in the current codebase. The logfile
attribute is effectively ignored, the exception doesn't serve a defined
purpose and mostly seems to be worked around.

Remove it entirely. If this does cause output problems, we'll figure
out better ways to address those.

(Bitbake rev: cfeffb602dd5319f071cd6bcf84139ec77f2d170)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/data.py

@@ -130,7 +130,7 @@ def emit_var(var, o=sys.__stdout__, d = init(), all=False):
         if all:
             oval = d.getVar(var, False)
         val = d.getVar(var)
-    except (KeyboardInterrupt, bb.build.FuncFailed):
+    except (KeyboardInterrupt):
         raise
     except Exception as exc:
         o.write('# expansion of %s threw %s: %s\n' % (var, exc.__class__.__name__, str(exc)))