[complex.ops] Remove empty paragraph.

Eelis · zygoloid · commit c16eb1cb7b10 · 2019-11-25T11:14:31.000-08:00
diff --git a/source/numerics.tex b/source/numerics.tex
@@ -682,8 +682,6 @@
 \pnum
 \returns
 \tcode{complex<T>(-lhs.real(),-lhs.imag())}.
-
-\pnum
 \end{itemdescr}
 
 \indexlibrarymember{operator-}{complex}%
