chore(provider): use default value set in metaclass (#503)

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>

lua/avante/providers/azure.lua

@@ -12,7 +12,6 @@ local O = require("avante.providers").openai
 local M = {}
 
 M.api_key_name = "AZURE_OPENAI_API_KEY"
-M.tokenizer_id = "gpt-4o"
 
 M.parse_message = O.parse_message
 M.parse_response = O.parse_response

lua/avante/providers/claude.lua

@@ -6,7 +6,6 @@ local P = require("avante.providers")
 local M = {}
 
 M.api_key_name = "ANTHROPIC_API_KEY"
-M.tokenizer_id = "gpt-4o"
 M.use_xml_format = true
 
 M.parse_message = function(opts)

lua/avante/providers/openai.lua

@@ -26,7 +26,6 @@ local P = require("avante.providers")
 local M = {}
 
 M.api_key_name = "OPENAI_API_KEY"
-M.tokenizer_id = "gpt-4o"
 
 ---@param opts AvantePromptOptions
 M.get_user_message = function(opts) return opts.user_prompt end