Streamline mysql processes (delete some files)

I saw a buddy write a tutorial and record it. I am ready to lose weight at any time.

1. Delete the mysql-test folder; 2. Delete the SQL-test folder;
3. Delete the debug folder under the bin directory;
4. Delete all files with the. pdb extension in the bin directory;
5. Delete the debug folder under the lib directory;
6. Delete all files with the extension. lib and. pdb in the lib directory;
7. Delete all files with the. pdb extension under the lib \ plugin directory;
8. Delete all files with the. pdb extension under the lib \ plugin \ debug directory.

After completion, it can be reduced from 660MB to 146 MB.