Can’t uninstall ganache

1.経緯
・ganacheをglobal installして起動させると、以下のerrorがでる
-bash: /usr/local/bin/ganache: Permission denied

2.以下を参照して手動で設定してみたがうまくいかない
https://docs.npmjs.com/resolving-eacces-permissions-errors-when-installing-packages-globally

3.ganacheをuninstall, remove, unlinkしても以下のファイルは残ったまま
lrwxrwxrwx 1 root root 44 May 1 12:33 /usr/local/bin/ganache -> ../lib/node_modules/ganache/dist/node/cli.js

4.rebuildをやってみる
# npm rebuild
rebuilt dependencies successfully

5.ganacheを再度uninstall, remove, unlinkしても以下のファイルは残ったまま
lrwxrwxrwx 1 root root 44 May 1 12:33 /usr/local/bin/ganache -> ../lib/node_modules/ganache/dist/node/cli.js

6.nodejsとnpmの再インストールはやりたくないので
・ganacheをglobalなしてinstall

7.pathを直接指定して、起動

# /opt/PrivateInvoice/294/node_modules/.bin/ganache -d --db /opt/ganache/db
ganache v7.1.0 (@ganache/cli: 0.2.0, @ganache/core: 0.2.0)
Starting RPC server

Available Accounts
==================
(0) 0x90F8bf6A479f320ead074411a4B0e7944Ea8c9C1 (1000 ETH)
(1) 0xFFcf8FDEE72ac11b5c542428B35EEF5769C409f0 (1000 ETH)
(2) 0x22d491Bde2303f2f43325b2108D26f1eAbA1e32b (1000 ETH)
(3) 0xE11BA2b4D45Eaed5996Cd0823791E0C93114882d (1000 ETH)
(4) 0xd03ea8624C8C5987235048901fB614fDcA89b117 (1000 ETH)
(5) 0x95cED938F7991cd0dFcb48F0a06a40FA1aF46EBC (1000 ETH)
(6) 0x3E5e9111Ae8eB78Fe1CC3bb8915d5D461F3Ef9A9 (1000 ETH)
(7) 0x28a8746e75304c0780E011BEd21C72cD78cd535E (1000 ETH)
(8) 0xACa94ef8bD5ffEE41947b4585a84BdA5a3d3DA6E (1000 ETH)
(9) 0x1dF62f291b2E969fB0849d99D9Ce41e2F137006e (1000 ETH)

Private Keys
==================
(0) 0x4f3edf983ac636a65a842ce7c78d9aa706d3b113bce9c46f30d7d21715b23b1d
(1) 0x6cbed15c793ce57650b9877cf6fa156fbef513c4e6134f022a85b1ffdd59b2a1
(2) 0x6370fd033278c143179d81c5526140625662b8daa446c22ee2d73db3707e620c
(3) 0x646f1ce2fdad0e6deeeb5c7e8e5543bdde65e86029e2fd9fc169899c440a7913
(4) 0xadd53f9a7e588d003326d1cbf9e4a43c061aadd9bc938c843a79e7b4fd2ad743
(5) 0x395df67f0c2d2d9fe1ad08d1bc8b6627011959b79c53d7dd6a3536a33ab8a4fd
(6) 0xe485d098507f54e7733a205420dfddbe58db035fa577fc294ebd14db90767a52
(7) 0xa453611d9419d0e56f499079478fd72c37b251a94bfde4d19872c44cf65386e3
(8) 0x829e924fdf021ba3dbbc4225edfece9aca04b929d6e75613329ca6f1d31c0bb4
(9) 0xb0057716d5917badaf911b193b12b910811c1497b5bada8d7711f758981c3773