test,debugger: migrate node-inspect tests to core

Migrate the node-inspect tests to core (where node-inspect code now
lives) and remove node-inspect from deps directory.

PR-URL: nodejs#38161
Backport-PR-URL: nodejs#38858
Refs: nodejs#36481
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Jan Krems <jan.krems@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

Author: Trott

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