removed bidistance call

src/eliminate_identity.cpp

@@ -10,26 +10,6 @@
 namespace migraphx {
 inline namespace MIGRAPHX_INLINE_NS {
 
-template <class Range, class Iterator>
-std::ptrdiff_t bidistance(const Range& r, Iterator start, Iterator last)
-{
-    auto start_forward   = start;
-    auto start_backwards = start;
-    std::size_t n        = 0;
-    while(start_forward != last and start_backwards != last)
-    {
-        n++;
-        if(start_forward != r.end())
-            start_forward++;
-        if(start_backwards != r.begin())
-            start_backwards--;
-    }
-    if(start_forward == last)
-        return n;
-    else
-        return -n;
-}
-
 void eliminate_identity::apply(program& p) const
 {
     auto last = std::prev(p.end());