Fixes deleter passed to the std::shared_ptr<void> (gazebosim#1009)

Signed-off-by: Michael Carroll <[email protected]>

src/ShaderParam.cc

@@ -117,7 +117,7 @@ void ShaderParam::InitializeBuffer(uint32_t _count)
 {
   this->dataPtr->count = _count;
   this->dataPtr->buffer.reset(new float[_count],
-      std::default_delete<float[]>());
+      [](void *ptr) { delete [] static_cast<float*>(ptr); });
 }
 
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