Remove unused HAVE_MONGOC definition

Author: jmikola

config.m4

@@ -380,8 +380,6 @@ dnl libmongoc stuff {{{
   AC_MSG_CHECKING(configuring libmongoc)
   AC_MSG_RESULT(...)
 
-  AC_DEFINE(HAVE_MONGOC, 1, [Kinda useless extension without it..])
-
   if test "$PHP_LIBMONGOC" != "no"; then
     if test "$PHP_LIBBSON" == "no"; then
       AC_MSG_ERROR(Cannot use system libmongoc and bundled libbson)

config.w32

@@ -77,8 +77,6 @@ if (PHP_MONGODB != "no") {
   ADD_SOURCES(configure_module_dirname + "/src/libmongoc/src/mongoc", "mongoc-secure-channel.c mongoc-stream-tls-secure-channel.c", "mongodb");
   ADD_SOURCES(configure_module_dirname + "/src/libmongoc/src/mongoc", "mongoc-sasl.c", "mongodb");
 
-  AC_DEFINE("HAVE_MONGOC", 1);
-
   var bson_opts = {
     BSON_BYTE_ORDER: 1234,
     BSON_OS: 2,