Revert "Changes to HIP to cope with Promote-free HCC"

This reverts commit efb9b9e86c.

Change-Id: I20a9bab3883ad09913b320210344d37599cb8fcd

src/math_functions.cpp

@@ -202,8 +202,7 @@ __device__ long long int llroundf(float x)
     int y = hc::precise_math::roundf(x);
     long long int z = y;
     return z;
-}
-__device__ float log10f(float x)
+}__device__ float log10f(float x)
 {
     return hc::precise_math::log10f(x);
 }