Remove unused noauthsessionservice property

[nbentoneves]

Fix #10799

Describe changes proposed in this pull request:

• Update README.md to use -Dauthenticate=false
• Remove noauthsessionservice from ApiSecurityConfig.java

Note:
The noauthsessionservice is still reference in session-service-working.md file https://github.com/cBioPortal/cbioportal/blob/master/docs/development/session-service-working.md#21-configuring-session-service. What would be the alternative property for noauthsessionservice?

Checks

• The commit log is comprehensible. It follows 7 rules of great commit messages. We can fix this during merge by using a squash+merge if necessary
• Has tests or has a separate issue that describes the types of test that should be created. If no test is included it should explicitly be mentioned in the PR why there is no test.
• Is this PR adding logic based on one or more clinical attributes? If yes, please make sure validation for this attribute is also present in the data validation / data loading layers (in backend repo) and documented in File-Formats Clinical data section!
• Make sure your PR has one of the labels defined in https://github.com/cBioPortal/cbioportal/blob/master/.github/release-drafter.yml

[haynescd]

👍

[inodb]

@nbentoneves Good catch also on this:

Note:
The noauthsessionservice is still reference in session-service-working.md file master/docs/development/session-service-working.md#21-configuring-session-service. What would be the alternative property for noauthsessionservice?

I just removed that warning b/c it doesn't seem to be necessary anymore