Its good habit to disable unwanted modules using Apache, below are the steps which we can used

Step-1: check the httpd -m first and check the module list

Step-2: Open Apache Configuration file
vi /etc/httpd/conf/httpd.conf

Under LoadModule section add the module names
For Example:
libxml posix wddx session etc can be add in same configuration file and comment it.

# LoadModule libxml posix wddx session

Step: 3 Save and restart Apache services That’s all