Make p2p-acceptablock not an extended test

Author: TheBlueMatt

test/functional/test_runner.py

@@ -125,6 +125,7 @@
     'minchainwork.py',
     'p2p-fingerprint.py',
     'uacomment.py',
+    'p2p-acceptblock.py',
 ]
 
 EXTENDED_SCRIPTS = [
@@ -152,7 +153,6 @@
     'txn_clone.py --mineblock',
     'notifications.py',
     'invalidateblock.py',
-    'p2p-acceptblock.py',
     'replace-by-fee.py',
 ]