[core] fix backend scope handling on render, cleanup and lowmemory

- Make renderer frontend responsible for creating a BackendScope on render
- encapsulate backend scope handling on cleanup and low memory in renderer impl

1 files changed, 0 insertions, 4 deletions

diff --git a/include/mbgl/renderer/renderer_backend.hpp b/include/mbgl/renderer/renderer_backend.hpp
index a383329395..c12e162fd1 100644
--- a/include/mbgl/renderer/renderer_backend.hpp
+++ b/include/mbgl/renderer/renderer_backend.hpp
@@ -30,10 +30,6 @@ public:
     // Called prior to rendering to update the internally assumed OpenGL state.
     virtual void updateAssumedState() = 0;
 
-    virtual BackendScope::ScopeType getScopeType() const {
-        return BackendScope::ScopeType::Explicit;
-    }
-
 protected:
     // Called with the name of an OpenGL extension that should be loaded. RendererBackend implementations
     // must call the API-specific version that obtains the function pointer for this function,