fix "unexpected" test successes under Winch

Signed-off-by: Joel Dice <joel.dice@fermyon.com>

Author: dicej

tests/misc_testsuite/component-model-async/future-cancel-read-closed.wast

@@ -1,7 +1,4 @@
 ;;! component_model_async = true
-;;! reference_types = true
-;;! gc_types = true
-;;! multi_memory = true
 
 ;; Create a future, start a read, close the write end, and cancel the read.
 (component

tests/misc_testsuite/component-model-async/future-cancel-write-closed.wast

@@ -1,7 +1,4 @@
 ;;! component_model_async = true
-;;! reference_types = true
-;;! gc_types = true
-;;! multi_memory = true
 
 ;; Create a future, start a write, close the read end, and cancel the write.
 (component

tests/misc_testsuite/component-model-async/future-cancel-write-completed.wast

@@ -1,7 +1,4 @@
 ;;! component_model_async = true
-;;! reference_types = true
-;;! gc_types = true
-;;! multi_memory = true
 
 ;; Create a future, start a write, let it complete, and cancel the write prior
 ;; to receiving the completion event.