deps: remove and gitignore .bin directory

The .bin/ directory in deps/npm/node_modules seens to have been an
accidental check-in in commit e79ccee ("npm: upgrade to v2.1.18").
It causes trouble for distro packagers so delete it and blacklist it.

Fixes: #2839
PR-URL: #3004
Reviewed-By: Kat Marchán <[email protected]>
Reviewed-By: Rod Vagg <[email protected]>
Reviewed-By: Sakthipriyan Vairamani <[email protected]>

Author: bnoordhuis

.gitignore

@@ -71,6 +71,9 @@ deps/openssl/openssl.xml
 deps/openssl/openssl.target.mk
 deps/zlib/zlib.target.mk
 
+# not needed and causes issues for distro packagers
+deps/npm/node_modules/.bin/
+
 # build/release artifacts
 /*.tar.*
 /SHASUMS*.txt*