Revert "Bug 511862 - core.tests.runtime dependency to org.eclipse.test.performance is not optional"

This reverts commit afb1c66492704a75d9bf6870a0a588b5a8c1eae7.

Change-Id: I8346be1fe3695d70085ee22f18381606a0e46101
diff --git a/tests/org.eclipse.core.tests.runtime/META-INF/MANIFEST.MF b/tests/org.eclipse.core.tests.runtime/META-INF/MANIFEST.MF
index e1178fd..81e847a 100644
--- a/tests/org.eclipse.core.tests.runtime/META-INF/MANIFEST.MF
+++ b/tests/org.eclipse.core.tests.runtime/META-INF/MANIFEST.MF
@@ -13,7 +13,7 @@
  org.eclipse.core.tests.runtime.perf,
  org.eclipse.core.tests.runtime.session
 Require-Bundle: org.junit,
- org.eclipse.test.performance;bundle-version="3.13.0",
+ org.eclipse.test.performance;resolution:=optional,
  org.eclipse.core.runtime;bundle-version="3.11.0",
  org.eclipse.core.tests.harness;bundle-version="3.11.0"
 Bundle-ActivationPolicy: lazy