BSONObjBuilder::appendAsNumber is unused.

src/mongo/bson/bsonobjbuilder.cpp:bool BSONObjBuilder::appendAsNumber(StringData fieldName, const string& data) {

src/mongo/bson/bsonobjbuilder.h:    bool appendAsNumber(StringData fieldName, const std::string& data);

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(b.appendAsNumber("a", "1"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(b.appendAsNumber("b", "1.1"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(b.appendAsNumber("c", "-1"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(b.appendAsNumber("d", "-1.1"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(b.appendAsNumber("e", "32131231231232313"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(!b.appendAsNumber("f", "zz"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(!b.appendAsNumber("f", "5zz"));

src/mongo/dbtests/jsobjtests.cpp:        ASSERT(!b.appendAsNumber("f", "zz5"));