Scripts and tools: Drop no-longer-relevant copyright holder names

Now that leveldb, secp256k1, etc. are reliably excluded, these
names will not show up in the searched files.

Author: Empact

contrib/devtools/copyright_header.py

@@ -90,24 +90,12 @@ def compile_copyright_regex(copyright_style, year_style, name):
 EXPECTED_HOLDER_NAMES = [
     "Satoshi Nakamoto\n",
     "The Bitcoin Core developers\n",
-    "The Bitcoin Core developers \n",
     "Bitcoin Core Developers\n",
-    "the Bitcoin Core developers\n",
-    "The Bitcoin developers\n",
-    "The LevelDB Authors\. All rights reserved\.\n",
     "BitPay Inc\.\n",
-    "BitPay, Inc\.\n",
     "University of Illinois at Urbana-Champaign\.\n",
-    "MarcoFalke\n",
     "Pieter Wuille\n",
-    "Pieter Wuille +\*\n",
-    "Pieter Wuille, Gregory Maxwell +\*\n",
-    "Pieter Wuille, Andrew Poelstra +\*\n",
-    "Andrew Poelstra +\*\n",
     "Wladimir J. van der Laan\n",
     "Jeff Garzik\n",
-    "Diederik Huys, Pieter Wuille +\*\n",
-    "Thomas Daede, Cory Fields +\*\n",
     "Jan-Klaas Kollhof\n",
     "Sam Rushing\n",
     "ArtForz -- public domain half-a-node\n",