configure.ac: drop useless SQLite3 dependency

We don't use SQLite3 directly, we use libdbi and libdbdsqlite3.

Change-Id: Ibf4eb53e60a2957eca99a2c8e613f75a8c43ac89
diff --git a/configure.ac b/configure.ac
index e500375..8ab6021 100644
--- a/configure.ac
+++ b/configure.ac
@@ -112,11 +112,6 @@
 AC_HEADER_STDC
 AC_CHECK_HEADERS(dbi/dbd.h,,AC_MSG_ERROR(DBI library is not installed))
 
-found_sqlite3=yes
-PKG_CHECK_MODULES(SQLITE3, sqlite3, ,found_sqlite3=no)
-AM_CONDITIONAL(HAVE_SQLITE3, test "$found_sqlite3" = yes)
-AC_SUBST(found_sqlite3)
-
 
 dnl Checks for typedefs, structures and compiler characteristics
 AX_CHECK_COMPILE_FLAG([-Werror=implicit], [CFLAGS="$CFLAGS -Werror=implicit"])
diff --git a/src/utils/Makefile.am b/src/utils/Makefile.am
index 2d67102..cb0faf6 100644
--- a/src/utils/Makefile.am
+++ b/src/utils/Makefile.am
@@ -10,7 +10,6 @@
 	$(LIBOSMOGSM_CFLAGS) \
 	$(LIBOSMOABIS_CFLAGS) \
 	$(COVERAGE_CFLAGS) \
-	$(SQLITE3_CFLAGS) \
 	$(LIBSMPP34_CFLAGS) \
 	$(NULL)