diff --git a/android/cpp/native_map_view.cpp b/android/cpp/native_map_view.cpp
index be07ba50e..4a2e4099a 100644
--- a/android/cpp/native_map_view.cpp
+++ b/android/cpp/native_map_view.cpp
@@ -610,15 +610,6 @@ void loadExtensions() {
         assert(gl::IsVertexArray != nullptr);
     }
 
-    if (extensions.find("GL_OES_packed_depth_stencil") != std::string::npos) {
-        mbgl::Log::Info(mbgl::Event::OpenGL, "Using GL_OES_packed_depth_stencil.");
-        gl::isPackedDepthStencilSupported = true;
-    }
-
-    if (extensions.find("GL_OES_depth24") != std::string::npos) {
-        gl::isDepth24Supported = true;
-    }
-
     if (extensions.find("GL_KHR_debug") != std::string::npos) {
         mbgl::Log::Info(mbgl::Event::OpenGL, "Using GL_KHR_debug.");
         gl::DebugMessageControl = reinterpret_cast<gl::PFNGLDEBUGMESSAGECONTROLPROC>(
diff --git a/include/mbgl/platform/gl.hpp b/include/mbgl/platform/gl.hpp
index 78f5ba087..1b842b080 100644
--- a/include/mbgl/platform/gl.hpp
+++ b/include/mbgl/platform/gl.hpp
@@ -144,14 +144,6 @@ extern PFNGLDELETEVERTEXARRAYSPROC DeleteVertexArrays;
 extern PFNGLGENVERTEXARRAYSPROC GenVertexArrays;
 extern PFNGLISVERTEXARRAYPROC IsVertexArray;
 
-// GL_EXT_packed_depth_stencil / GL_OES_packed_depth_stencil
-extern bool isPackedDepthStencilSupported;
-#define GL_DEPTH24_STENCIL8 0x88F0
-
-// GL_OES_depth24
-extern bool isDepth24Supported;
-#define GL_DEPTH_COMPONENT24 0x81A6
-
 // Debug group markers, useful for debugging on iOS
 #if defined(DEBUG)
 // static int indent = 0;
diff --git a/platform/default/glfw_view.cpp b/platform/default/glfw_view.cpp
index 789d2d4b6..fa27c0880 100644
--- a/platform/default/glfw_view.cpp
+++ b/platform/default/glfw_view.cpp
@@ -142,10 +142,6 @@ GLFWView::GLFWView(bool fullscreen_) : fullscreen(fullscreen_) {
             assert(gl::GenVertexArrays != nullptr);
             assert(gl::IsVertexArray != nullptr);
         }
-
-        // Require packed depth stencil
-        gl::isPackedDepthStencilSupported = true;
-        gl::isDepth24Supported = true;
     });
 
     glfwMakeContextCurrent(nullptr);
diff --git a/platform/default/headless_view.cpp b/platform/default/headless_view.cpp
index 35c796e92..41584b9a9 100644
--- a/platform/default/headless_view.cpp
+++ b/platform/default/headless_view.cpp
@@ -95,10 +95,6 @@ void HeadlessView::loadExtensions() {
 #endif
     });
 
-    // HeadlessView requires packed depth stencil
-    gl::isPackedDepthStencilSupported = true;
-    gl::isDepth24Supported = true;
-
     extensionsLoaded = true;
 }
 
diff --git a/platform/ios/MGLMapView.mm b/platform/ios/MGLMapView.mm
index c928dd6ae..72f2d420c 100644
--- a/platform/ios/MGLMapView.mm
+++ b/platform/ios/MGLMapView.mm
@@ -251,14 +251,6 @@ std::chrono::steady_clock::duration secondsAsDuration(float duration)
             gl::PushGroupMarkerEXT = glPushGroupMarkerEXT;
             gl::PopGroupMarkerEXT = glPopGroupMarkerEXT;
         }
-
-        if (extensions.find("GL_OES_packed_depth_stencil") != std::string::npos) {
-            gl::isPackedDepthStencilSupported = YES;
-        }
-
-        if (extensions.find("GL_OES_depth24") != std::string::npos) {
-            gl::isDepth24Supported = YES;
-        }
     });
 
     // setup mbgl map
diff --git a/src/mbgl/platform/gl.cpp b/src/mbgl/platform/gl.cpp
index b18ca3da2..096ec8393 100644
--- a/src/mbgl/platform/gl.cpp
+++ b/src/mbgl/platform/gl.cpp
@@ -70,10 +70,6 @@ PFNGLDELETEVERTEXARRAYSPROC DeleteVertexArrays = nullptr;
 PFNGLGENVERTEXARRAYSPROC GenVertexArrays = nullptr;
 PFNGLISVERTEXARRAYPROC IsVertexArray = nullptr;
 
-bool isPackedDepthStencilSupported = false;
-
-bool isDepth24Supported = false;
-
 void checkError(const char *cmd, const char *file, int line) {
     const GLenum err = glGetError();
     if (err != GL_NO_ERROR) {