ui-log.c: do not link from age column

The link url wasn't properly escaped, and since the link was identical
to the one used on the commit message it didn't serve any special purpose.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

tests/t0103-log.sh

@@ -18,7 +18,7 @@ run_test 'generate "with%20space/log?qt=grep&q=commit+1"' '
 run_test 'find commit 1' 'grep -e "commit 1" trash/tmp'
 run_test 'find link with %20 in path' 'grep -e "/with%20space/log/?qt=grep" trash/tmp'
 run_test 'find link with + in arg' 'grep -e "/log/?qt=grep&q=commit+1" trash/tmp'
-run_test BUG 'no links with space in path' '! grep -e "href=./with space/" trash/tmp'
+run_test 'no links with space in path' '! grep -e "href=./with space/" trash/tmp'
 run_test 'no links with space in arg' '! grep -e "q=commit 1" trash/tmp'
 run_test 'commit 2 is not visible' '! grep -e "commit 2" trash/tmp'