Un-suppress tests that no longer fail.

icu-known-failures.txt contained a number of expected failures that
no longer apply.

Only three of the failures are still happening at the moment (bugs
27374606, 23995372 and 33447162).

Two expectations are currently worked around by patching the tests (bugs
27711713, 27552651) and are left here for documentation purposes.

Bug: 30029101
Test: CtsIcuTestCases
Change-Id: Iabc4509dfdb68d8c90a4bd8f94e8d162d2797e3d
diff --git a/tests/tests/icu/resources/android/icu/cts/expectations/icu-known-failures.txt b/tests/tests/icu/resources/android/icu/cts/expectations/icu-known-failures.txt
index ebcbd78..a2e6dc4 100644
--- a/tests/tests/icu/resources/android/icu/cts/expectations/icu-known-failures.txt
+++ b/tests/tests/icu/resources/android/icu/cts/expectations/icu-known-failures.txt
@@ -11,45 +11,16 @@
 },
 */
 {
-  description: "Class cannot be instantiated, cannot find resources android/icu/dev/test/serializable/data",
-  name: "android.icu.dev.test.serializable.CompatibilityTest",
-  bug: "27310873"
-},
-{
-  description: "Cannot find any classes to test because .class files are not treated as resources in APK",
-  name: "android.icu.dev.test.serializable.CoverageTest",
-  bug: "27666677"
-},
-{
   description: "Serialized forms have not been converted to use repackaged classes",
   name: "android.icu.dev.test.format.NumberFormatRegressionTest#TestSerialization",
   bug: "27374606"
 },
 {
-  description: "android.icu.charset package not available in repackaged Android library",
-  names: [
-    "android.icu.dev.test.charset.TestCharset",
-    "android.icu.dev.test.charset.TestConversion",
-    "android.icu.dev.test.charset.TestSelection"
-  ],
-  bug: "27373370"
-},
-{
   description: "Fails on host and on device in same way before and after packaging",
   name: "android.icu.dev.test.bidi.TestCompatibility#testCompatibility",
   bug: "23995372"
 },
 {
-  description: "Problem with negative multiplier, not a regression",
-  name: "android.icu.dev.test.format.NumberFormatTest#TestNonpositiveMultiplier",
-  bug: "19185440"
-},
-{
-  description: "Wrong case for exponent separator",
-  name: "android.icu.dev.test.format.PluralRulesTest#testOverUnderflow",
-  bug: "27566754"
-},
-{
   description: "Checks differences in DecimalFormat classes from ICU4J and JDK but on Android java.text.DecimalFormat is implemented in terms of ICU4J",
   name: "android.icu.dev.test.format.NumberFormatTest#TestDataDrivenJDK",
   bug: "27711713"