Remove branch discovery traits from shared lib

These are not necessary.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: If1339f5d12105f5bc2406c186084a0a00852d4f7
diff --git a/mbed-tls-restricted-pr-ci-testing.yaml b/mbed-tls-restricted-pr-ci-testing.yaml
index ddeb871..2890767 100644
--- a/mbed-tls-restricted-pr-ci-testing.yaml
+++ b/mbed-tls-restricted-pr-ci-testing.yaml
@@ -16,18 +16,6 @@
                       <repoOwner>Mbed-TLS</repoOwner>
                       <repository>mbedtls-test</repository>
                       <repositoryUrl>https://github.com/Mbed-TLS/mbedtls-test.git</repositoryUrl>
-                      <traits>
-                        <org.jenkinsci.plugins.github__branch__source.BranchDiscoveryTrait>
-                          <strategyId>1</strategyId>
-                        </org.jenkinsci.plugins.github__branch__source.BranchDiscoveryTrait>
-                        <org.jenkinsci.plugins.github__branch__source.OriginPullRequestDiscoveryTrait>
-                          <strategyId>2</strategyId>
-                        </org.jenkinsci.plugins.github__branch__source.OriginPullRequestDiscoveryTrait>
-                        <org.jenkinsci.plugins.github__branch__source.ForkPullRequestDiscoveryTrait>
-                          <strategyId>2</strategyId>
-                          <trust class="org.jenkinsci.plugins.github_branch_source.ForkPullRequestDiscoveryTrait$TrustPermission"/>
-                        </org.jenkinsci.plugins.github__branch__source.ForkPullRequestDiscoveryTrait>
-                      </traits>
                     </scm>
                   </retriever>
                   <defaultVersion>staging/pr-ci-testing</defaultVersion>