IVGCVSW-6814 Remove references to armnn:BackendId in the profiling code

Signed-off-by: Cathal Corbett <cathal.corbett@arm.com>
Change-Id: Ib399a5eee9e52882800ec3e02e4173424a7c19b1
diff --git a/src/profiling/ConnectionAcknowledgedCommandHandler.cpp b/src/profiling/ConnectionAcknowledgedCommandHandler.cpp
index 63ca741..a3dabd5 100644
--- a/src/profiling/ConnectionAcknowledgedCommandHandler.cpp
+++ b/src/profiling/ConnectionAcknowledgedCommandHandler.cpp
@@ -55,7 +55,7 @@
                 if(!backendContext.second->EnableProfiling(true))
                 {
                     throw armnn::BackendProfilingException(
-                            "Unable to enable profiling on Backend Id: " + backendContext.first.Get());
+                            "Unable to enable profiling on Backend Id: " + backendContext.first);
                 }
             }
         }