configure: remove unused dependency on sdbus++

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: If6517671c0adbfdff2ec4698bc73e0cd08ccd34d
diff --git a/configure.ac b/configure.ac
index 9755ae7..64312b9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,10 +24,6 @@
 PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus])
 PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging])
 
-# Check for sdbus++ tool
-AC_PATH_PROG([SDBUSPLUSPLUS], [sdbus++])
-AS_IF([test "x$SDBUSPLUSPLUS" == "x"], AC_MSG_ERROR([Cannot find sdbus++]))
-
 # Checks for typedefs, structures, and compiler characteristics.
 AX_CXX_COMPILE_STDCXX_17([noext])
 AX_APPEND_COMPILE_FLAGS([-Wall -Werror], [CXXFLAGS])