[BUILD] Fix default bazel build

[esigo]

Fixes #1802 (issue)

can be tested with (no test target):
bazel query '//... except kind(.*test, //...)' | xargs bazel build --cxxopt=-std=c++14

Changes

moves HttpClientFactory::CreateNoSend() under ENABLE_TEST flag.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[lalitb]

LGTM. Thanks

[codecov]

Codecov Report

Merging #1816 (41b9ec0) into main (ec90007) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1816   +/-   ##
=======================================
  Coverage   85.73%   85.73%           
=======================================
  Files         171      171           
  Lines        5240     5240           
=======================================
  Hits         4492     4492           
  Misses        748      748