23.0-cleanup-dqm_algorithms
Following up ATLASDQ-956, prompted by a comment on !54651 (comment 5725784). This MR attempts to:
- use correct #include headers in the headers file
- use std:: math functions where possible, replacing the global namespace functions and TMath functions, removing the deprecated math.h headers
- take out the 'using namespace std' directives
Edited by Shaun Roe