Downgrade to stable libmongoc version

This reverts commit 7274d49.

Author: alcaeus

config.m4

@@ -365,12 +365,6 @@ if test "$PHP_MONGODB" != "no"; then
       AC_SUBST(MONGOC_ENABLE_CLIENT_SIDE_ENCRYPTION, 0)
     fi
 
-    if test "$PHP_MONGODB_DEVELOPER_FLAGS" = "yes"; then
-      AC_SUBST(MONGOC_ENABLE_DEBUG_ASSERTIONS, 1)
-    else
-      AC_SUBST(MONGOC_ENABLE_DEBUG_ASSERTIONS, 0)
-    fi
-
     dnl On MacOS, use gcut from the coreutils brew package instead of cut
     dnl Generated with: find src/libmongoc/src/common -name '*.c' -print0 | cut -sz -d / -f 5- | sort -dz | tr '\000' ' '
     PHP_MONGODB_COMMON_SOURCES="common-b64.c common-md5.c common-thread.c"
@@ -418,7 +412,6 @@ if test "$PHP_MONGODB" != "no"; then
     ac_config_dir=PHP_EXT_SRCDIR(mongodb)
 
     AC_CONFIG_FILES([
-      ${ac_config_dir}/src/libmongoc/src/common/common-config.h
       ${ac_config_dir}/src/libmongoc/src/libbson/src/bson/bson-config.h
       ${ac_config_dir}/src/libmongoc/src/libbson/src/bson/bson-version.h
       ${ac_config_dir}/src/libmongoc/src/libmongoc/src/mongoc/mongoc-config.h

config.w32

@@ -184,7 +184,6 @@ if (PHP_MONGODB != "no") {
     MONGOC_ENABLE_COMPRESSION_ZLIB: 0,
     MONGOC_ENABLE_COMPRESSION_ZSTD: 0,
     MONGOC_ENABLE_COMPRESSION: 0,
-    MONGOC_ENABLE_DEBUG_ASSERTIONS: 0,
     MONGOC_ENABLE_MONGODB_AWS_AUTH: 0,
     MONGOC_ENABLE_SASL: 0,
     MONGOC_ENABLE_SASL_CYRUS: 0,
@@ -363,12 +362,6 @@ if (PHP_MONGODB != "no") {
     mongoc_opts
   );
 
-  mongodb_generate_header(
-    configure_module_dirname + "/src/libmongoc/src/common/common-config.h.in",
-    configure_module_dirname + "/src/libmongoc/src/common/common-config.h",
-    mongoc_opts
-  );
-
   mongodb_generate_header(
     configure_module_dirname + "/src/libmongoc/src/libmongoc/src/mongoc/mongoc-version.h.in",
     configure_module_dirname + "/src/libmongoc/src/libmongoc/src/mongoc/mongoc-version.h",

src/LIBMONGOC_VERSION_CURRENT

@@ -1 +1 @@
-1.18.0-20200727+git60267532b6
+1.17.2