Bug 494234 - Change org.apache.derby to import-package in performance

The org.apache.derby.jdbc package can come from either
org.apache.derby.core plugin (build.eclipse.org) or org.apache.derby
(Orbit). By changing the dependency from Require-bundle to
import-package, either one can work.

Change-Id: Iad57cacf16d29abb136829a04a8704e31e0eb097
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
(cherry picked from commit 35e6d7fba0103b6e1c9ffb6b6bff9a34392f3d3e)
diff --git a/bundles/org.eclipse.test.performance/META-INF/MANIFEST.MF b/bundles/org.eclipse.test.performance/META-INF/MANIFEST.MF
index 40719e4..b61f866 100644
--- a/bundles/org.eclipse.test.performance/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.test.performance/META-INF/MANIFEST.MF
@@ -15,8 +15,8 @@
  org.eclipse.test.internal.performance.tests,
  org.eclipse.test.performance
 Require-Bundle: org.eclipse.core.runtime,
- org.junit,
- org.apache.derby.core;resolution:=optional
+ org.junit
 Bundle-ActivationPolicy: lazy
 Bundle-ClassPath: .
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6
+Import-Package: org.apache.derby.jdbc;resolution:=optional