Viewport: Removed broken using std::isnan

diff --git a/pv/view/viewport.cpp b/pv/view/viewport.cpp
index 2150182f543dd4a52eb974f3352198e8b2b24b66..2dfdddc1448bddecd8653918c63204ca63dd266c 100644 (file)
--- a/pv/view/viewport.cpp
+++ b/pv/view/viewport.cpp
@@ -36,7 +36,6 @@ using std::abs;
 using std::back_inserter;
 using std::copy;
 using std::dynamic_pointer_cast;
-using std::isnan;
 using std::max;
 using std::min;
 using std::none_of;