Failed in
https://download.eclipse.org/eclipse/downloads/drops4/I20241217-0630/testresults/html/org.eclipse.equinox.p2.tests_ep435I-unit-linux-x86_64-java23_linux.gtk.x86_64_23.html
with really no message:
```
N/A

junit.framework.AssertionFailedError
at junit.framework.Assert.fail(Assert.java:55)
at junit.framework.Assert.assertTrue(Assert.java:22)
at junit.framework.Assert.assertFalse(Assert.java:39)
at junit.framework.Assert.assertFalse(Assert.java:47)
at junit.framework.TestCase.assertFalse(TestCase.java:216)
at org.eclipse.equinox.p2.tests.reconciler.dropins.SharedInstallTestsProfileSpoofEnabledConfigured.testUserDropinsStartup(SharedInstallTestsProfileSpoofEnabledConfigured.java:215)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at junit.framework.TestCase.runTest(TestCase.java:177)
at org.eclipse.equinox.p2.tests.AbstractProvisioningTest.runTest(AbstractProvisioningTest.java:968)
at junit.framework.TestCase.runBare(TestCase.java:142)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:130)
at junit.framework.TestSuite.runTest(TestSuite.java:241)
at org.eclipse.equinox.p2.tests.reconciler.dropins.ReconcilerTestSuite.run(ReconcilerTestSuite.java:87)
at junit.framework.TestSuite.runTest(TestSuite.java:241)
at junit.framework.TestSuite.run(TestSuite.java:236)
```

This PR removes insane assert messages and some other changes to make
code slightly easier on the eyes.

A bigger change will be needed to get rid of this suite methods thus
reverting it.