Lights: Make possible for gpu drivers to unroll loop.

GPU doesn't like indirect addressing and thus it's better to have unrolled loop. This is only possible for loop with a static iteration count.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14830 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/graphics/callbacks.cpp

@@ -364,7 +364,6 @@ void PointLightProvider::OnSetConstants(IMaterialRendererServices *srv, int)
     srv->setVertexShaderConstant("col[0]", m_color.data(), m_color.size());
     srv->setVertexShaderConstant("center[0]", m_pos.data(), m_pos.size());
     srv->setVertexShaderConstant("viewm", m_view.pointer(), 16);
-    srv->setVertexShaderConstant("lightcount", &lightcount, 1);
 
     if (!firstdone)
     {