COMPMID-766 Allow graph examples to run without OpenCL being present on the platform

Change-Id: I4142e0720ecb58549a08d4e86ad21abb882f5f37
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/114552
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/SConscript b/SConscript
index 2544d1f..c7779ca 100644
--- a/SConscript
+++ b/SConscript
@@ -235,7 +235,7 @@
     Export('arm_compute_graph_a')
 
     arm_compute_env.Append(LIBPATH = ["#build/%s/opencl-1.2-stubs" % env['build_dir']])
-    arm_compute_graph_so = build_library('arm_compute_graph', shared_graph_objects, static=False, libs = [ "arm_compute", "arm_compute_core", "OpenCL" ])
+    arm_compute_graph_so = build_library('arm_compute_graph', shared_graph_objects, static=False, libs = [ "arm_compute", "arm_compute_core"])
     Depends(arm_compute_graph_so, arm_compute_so)
     Depends(arm_compute_graph_so, opencl)
     Export('arm_compute_graph_so')