Remove printf that causes linker issue in environments like SGX

[svenkata9]

Description

Remove printf that causes linker issue in environments like SGX

Affected parts

• [x] Library
• [ ] Test Application
• [ ] Perf Application
• [ ] Other: (please specify)

Motivation and Context

In an embedded environment like SGX which does not have access to standard C libraries present in the system, the ipsec-mb library built with printf does not work and gives build errors. Fixes #142

How Has This Been Tested?

Build in environment that links the static binary with SGX enclave

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.

[pablodelara]

Code is integrated now, thanks.