[embind] Remove init_embind. NFC

All this function was doing was exporting a bunch of library methods.
If folks want to export these functions they can do it themselves using
the normal mechanisms.

emconfigure

@@ -3,7 +3,6 @@
 # Emscripten is available under two separate licenses, the MIT license and the
 # University of Illinois/NCSA Open Source License.  Both these licenses can be
 # found in the LICENSE file.
-#
 # Entry point for running python scripts on UNIX systems.
 #
 # Automatically generated by `create_entry_points.py`; DO NOT EDIT.

src/embind/embind.js

@@ -59,16 +59,6 @@ var LibraryEmbind = {
   }`,
   $EmValOptionalType__deps: ['$EmValType'],
   $EmValOptionalType: '=Object.assign({optional: true}, EmValType);',
-  $init_embind__deps: [
-    '$getInheritedInstanceCount', '$getLiveInheritedInstances',
-    '$flushPendingDeletes', '$setDelayFunction'],
-  $init_embind__postset: 'init_embind();',
-  $init_embind: () => {
-    Module['getInheritedInstanceCount'] = getInheritedInstanceCount;
-    Module['getLiveInheritedInstances'] = getLiveInheritedInstances;
-    Module['flushPendingDeletes'] = flushPendingDeletes;
-    Module['setDelayFunction'] = setDelayFunction;
-  },
 
   $throwUnboundTypeError__deps: ['$registeredTypes', '$typeDependencies', '$UnboundTypeError', '$getTypeName'],
   $throwUnboundTypeError: (message, types) => {
@@ -219,7 +209,6 @@ var LibraryEmbind = {
   },
 
   // raw pointer -> instance
-  $registeredInstances__deps: ['$init_embind'],
   $registeredInstances: {},
 
   $getBasestPointer__deps: ['$throwBindingError'],