Remove unused ppapi::AppID values.

Each PPAPI interface had an associated ppapi::AppID, used as its IPC
routing-Id. Many interfaces still have Ids listed, despite no longer
using them.

Change-Id: Id8017f5861e12d0be14c5dc108c6c6023c3bbd3f
Reviewed-on: https://chromium-review.googlesource.com/1086489Reviewed-by: Raymes Khoury <raymes@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#565411}

ppapi/shared_impl/api_id.h

@@ -13,35 +13,15 @@ enum ApiID {
   // Zero is reserved for control messages.
   API_ID_NONE = 0,
   API_ID_PPB_AUDIO = 1,
-  API_ID_PPB_AUDIO_CONFIG,
-  API_ID_PPB_AUDIO_INPUT_DEV,
-  API_ID_PPB_AUDIO_OUTPUT_DEV,
   API_ID_PPB_BROKER,
   API_ID_PPB_BUFFER,
-  API_ID_PPB_CONTEXT_3D,
   API_ID_PPB_CORE,
-  API_ID_PPB_CURSORCONTROL,
-  API_ID_PPB_FILE_CHOOSER,
-  API_ID_PPB_FILE_IO,
-  API_ID_PPB_FILE_REF,
-  API_ID_PPB_FILE_SYSTEM,
-  API_ID_PPB_FLASH_DEVICE_ID,
-  API_ID_PPB_FLASH_FONTFILE,
-  API_ID_PPB_FLASH_MENU,
   API_ID_PPB_FLASH_MESSAGELOOP,
-  API_ID_PPB_FONT,
-  API_ID_PPB_GRAPHICS_2D,
   API_ID_PPB_GRAPHICS_3D,
   API_ID_PPB_IMAGE_DATA,
   API_ID_PPB_INSTANCE,
   API_ID_PPB_INSTANCE_PRIVATE,
-  API_ID_PPB_OPENGLES2,
-  API_ID_PPB_PDF,
-  API_ID_PPB_SURFACE_3D,
-  API_ID_PPB_TALK,
   API_ID_PPB_TESTING,
-  API_ID_PPB_TEXT_INPUT,
-  API_ID_PPB_URL_RESPONSE_INFO,
   API_ID_PPB_VAR_ARRAY_BUFFER,
   API_ID_PPB_VAR_DEPRECATED,
   API_ID_PPB_VIDEO_CAPTURE_DEV,
@@ -58,7 +38,6 @@ enum ApiID {
   API_ID_PPP_PDF,
   API_ID_PPP_PRINTING,
   API_ID_PPP_TEXT_INPUT,
-  API_ID_PPP_VIDEO_CAPTURE_DEV,
   API_ID_PPP_VIDEO_DECODER_DEV,
   API_ID_RESOURCE_CREATION,