diff --git a/test_conformance/gl/test_images_getinfo_common.cpp b/test_conformance/gl/test_images_getinfo_common.cpp
index 836eb067..1d1b0542 100644
--- a/test_conformance/gl/test_images_getinfo_common.cpp
+++ b/test_conformance/gl/test_images_getinfo_common.cpp
@@ -23,7 +23,6 @@
 #include <CL/cl_gl.h>
 #endif
 
-extern int supportsHalf(cl_context context, bool *supports_half);
 
 static int test_image_info(cl_context context, cl_command_queue queue,
                            GLenum glTarget, GLuint glTexture, size_t imageWidth,
@@ -97,10 +96,6 @@ static int test_image_format_get_info(cl_context context,
     if (fmt->type == kHalf)
     {
         if (DetectFloatToHalfRoundingMode(queue)) return 0;
-        bool supports_half = false;
-        error = supportsHalf(context, &supports_half);
-        if (error != 0) return error;
-        if (!supports_half) return 0;
     }
 
     size_t w = width, h = height, d = depth;
diff --git a/test_conformance/gl/test_images_read_common.cpp b/test_conformance/gl/test_images_read_common.cpp
index d12936e8..3b76745a 100644
--- a/test_conformance/gl/test_images_read_common.cpp
+++ b/test_conformance/gl/test_images_read_common.cpp
@@ -23,7 +23,6 @@
 #include <CL/cl_gl.h>
 #endif
 
-extern int supportsHalf(cl_context context, bool *supports_half);
 extern int supportsMsaa(cl_context context, bool *supports_msaa);
 extern int supportsDepth(cl_context context, bool *supports_depth);
 
@@ -441,10 +440,6 @@ static int test_image_format_read(cl_context context, cl_command_queue queue,
     if (fmt->type == kHalf)
     {
         if (DetectFloatToHalfRoundingMode(queue)) return 1;
-        bool supports_half = false;
-        error = supportsHalf(context, &supports_half);
-        if (error != 0) return error;
-        if (!supports_half) return 0;
     }
 #ifdef GL_VERSION_3_2
     if (get_base_gl_target(target) == GL_TEXTURE_2D_MULTISAMPLE
diff --git a/test_conformance/gl/test_renderbuffer.cpp b/test_conformance/gl/test_renderbuffer.cpp
index 1b5709d4..25807abe 100644
--- a/test_conformance/gl/test_renderbuffer.cpp
+++ b/test_conformance/gl/test_renderbuffer.cpp
@@ -63,7 +63,6 @@ extern int test_cl_image_read(cl_context context, cl_command_queue queue,
                               cl_image_format *outFormat, ExplicitType *outType,
                               void **outResultBuffer);
 
-extern int supportsHalf(cl_context context, bool *supports_half);
 
 static int test_attach_renderbuffer_read_image(
     cl_context context, cl_command_queue queue, GLenum glTarget,