[v14.x backport] deps,debugger: move node-inspect into core

LICENSE

@@ -1333,29 +1333,6 @@ The externally maintained libraries used by Node.js are:
     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   """
 
-- node-inspect, located at deps/node-inspect, is licensed as follows:
-  """
-    Copyright Node.js contributors. All rights reserved.
-
-    Permission is hereby granted, free of charge, to any person obtaining a copy
-    of this software and associated documentation files (the "Software"), to
-    deal in the Software without restriction, including without limitation the
-    rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-    sell copies of the Software, and to permit persons to whom the Software is
-    furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be included in
-    all copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-    IN THE SOFTWARE.
-  """
-
 - large_pages, located at src/large_pages, is licensed as follows:
   """
      Copyright (C) 2018 Intel Corporation

Makefile

@@ -563,10 +563,6 @@ test-pummel: all
 test-internet: all
 	$(PYTHON) tools/test.py $(PARALLEL_ARGS) internet
 
-test-node-inspect: $(NODE_EXE)
-	USE_EMBEDDED_NODE_INSPECT=1 $(NODE) tools/test-npm-package \
-		--install deps/node-inspect test
-
 test-benchmark: | bench-addons-build
 	$(PYTHON) tools/test.py $(PARALLEL_ARGS) benchmark