tpmclient: Remove unused data.

This causes build failures when warnings are treated as errors.

Signed-off-by: Philip Tricca <philip.b.tricca@intel.com>
diff --git a/test/tpmclient/tpmclient.cpp b/test/tpmclient/tpmclient.cpp
index 6d27a3d..e842af9 100644
--- a/test/tpmclient/tpmclient.cpp
+++ b/test/tpmclient/tpmclient.cpp
@@ -2463,7 +2463,6 @@
 
     TSS2_TCTI_CONTEXT *otherResMgrTctiContext = 0;
     TSS2_SYS_CONTEXT *otherSysContext;
-    char otherResMgrInterfaceName[] = "Other Resource Manager";
 
     sessionDataArray[0] = &sessionData;
     sessionDataOutArray[0] = &sessionDataOut;