switch to inline implementation

Author: jenseng

DEPENDENCIES.md

@@ -349,10 +349,11 @@ graph LR;
   libnpmexec-->npmcli-template-oss["@npmcli/template-oss"];
   libnpmexec-->pacote;
   libnpmexec-->proc-log;
-  libnpmexec-->proper-lockfile;
   libnpmexec-->read-package-json-fast;
   libnpmexec-->read;
+  libnpmexec-->retry;
   libnpmexec-->semver;
+  libnpmexec-->signal-exit;
   libnpmexec-->tap;
   libnpmexec-->walk-up-path;
   libnpmfund-->npmcli-arborist["@npmcli/arborist"];
@@ -708,9 +709,6 @@ graph LR;
   promise-retry-->err-code;
   promise-retry-->retry;
   promzard-->read;
-  proper-lockfile-->graceful-fs;
-  proper-lockfile-->retry;
-  proper-lockfile-->signal-exit;
   read-->mute-stream;
   read-package-json-fast-->json-parse-even-better-errors;
   read-package-json-fast-->npm-normalize-package-bin;

node_modules/.gitignore

@@ -177,10 +177,6 @@
 !/promise-call-limit
 !/promise-retry
 !/promzard
-!/proper-lockfile
-!/proper-lockfile/node_modules/
-/proper-lockfile/node_modules/*
-!/proper-lockfile/node_modules/signal-exit
 !/qrcode-terminal
 !/read-cmd-shim
 !/read-package-json-fast