Bug#1031942: sphinxbase: Please drop the ltrace build dependency on mipsel

[Adrian Bunk]

Source: sphinxbase
Version: 0.8+5prealpha+1-15
Severity: serious
Control: block 1023436 by -1

I am planning to fix #1023436 by dropping the broken mipsel binary,
and sphinxbase is the only user.

sphinxbase uses ltrace only for debugging in case of test failure,
checking the logfile that is not shown with the current non-failing
tests the ltrace output on mipsel looks like #1023436.