Remove dead extern trace_opcodes from opcode files

DISPATCH macro no longer references trace_opcodes (trace check
was removed for performance). Clean up the unused extern declarations.
Tracing still works via the centralized eval_dispatch path.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jgarzik

src/opcodes_async.asm

@@ -30,7 +30,6 @@ extern eval_dispatch
 extern eval_saved_rbx
 extern eval_saved_r13
 extern eval_saved_r15
-extern trace_opcodes
 extern opcode_table
 extern obj_dealloc
 extern obj_incref

src/opcodes_build.asm

@@ -23,7 +23,6 @@ extern eval_saved_rbx
 extern eval_saved_r13
 extern eval_saved_r15
 extern eval_co_consts
-extern trace_opcodes
 extern opcode_table
 extern obj_dealloc
 extern obj_decref

src/opcodes_call.asm

@@ -23,7 +23,6 @@ extern eval_dispatch
 extern eval_saved_rbx
 extern eval_saved_r13
 extern eval_saved_r15
-extern trace_opcodes
 extern opcode_table
 extern obj_dealloc
 extern obj_decref

src/opcodes_import.asm

@@ -10,7 +10,6 @@ extern eval_saved_rbx
 extern eval_saved_r13
 extern eval_saved_r15
 extern eval_co_names
-extern trace_opcodes
 extern opcode_table
 extern import_module
 extern obj_decref

src/opcodes_load.asm

@@ -25,7 +25,6 @@ extern eval_saved_r15
 extern eval_co_names
 extern eval_co_consts
 extern eval_co_consts_tags
-extern trace_opcodes
 extern opcode_table
 extern obj_dealloc
 extern dict_get

src/opcodes_misc.asm

@@ -26,7 +26,6 @@ extern eval_saved_r15
 extern eval_co_names
 extern eval_co_consts
 extern eval_co_consts_tags
-extern trace_opcodes
 extern opcode_table
 extern eval_return
 extern obj_dealloc

src/opcodes_stack.asm

@@ -22,7 +22,6 @@ extern eval_dispatch
 extern eval_saved_rbx
 extern eval_saved_r13
 extern eval_saved_r15
-extern trace_opcodes
 extern opcode_table
 extern obj_dealloc
 

src/opcodes_store.asm

@@ -23,7 +23,6 @@ extern eval_saved_rbx
 extern eval_saved_r13
 extern eval_saved_r15
 extern eval_co_names
-extern trace_opcodes
 extern opcode_table
 extern obj_dealloc
 extern obj_decref