Disable L8 shrinking

- L8 shrinking is not working,
  it is disabled on studio,
  we disable it here from
  command line, will be re-enabled
  when it works.

Bug: 143431384
Change-Id: I2152ce5f1cd3cc21a0c4078af0c403332f018e38

src/main/java/com/android/tools/r8/L8Command.java

diff --git a/src/main/java/com/android/tools/r8/L8Command.java b/src/main/java/com/android/tools/r8/L8Command.java
index 656fee1..1837cd3 100644
--- a/src/main/java/com/android/tools/r8/L8Command.java
+++ b/src/main/java/com/android/tools/r8/L8Command.java
@@ -163,8 +163,10 @@
     }
 
     public boolean isShrinking() {
+      // TODO(b/143431384): Re-enable shrinking.
+      return false;
       // Answers true if keep rules, even empty, are provided.
-       return !proguardConfigStrings.isEmpty() || !proguardConfigFiles.isEmpty();
+      // return !proguardConfigStrings.isEmpty() || !proguardConfigFiles.isEmpty();
     }
 
     @Override

src/test/java/com/android/tools/r8/L8CommandTest.java

diff --git a/src/test/java/com/android/tools/r8/L8CommandTest.java b/src/test/java/com/android/tools/r8/L8CommandTest.java
index 7a72d1b..0a55b8a 100644
--- a/src/test/java/com/android/tools/r8/L8CommandTest.java
+++ b/src/test/java/com/android/tools/r8/L8CommandTest.java
@@ -114,6 +114,7 @@
   }
 
   @Test
+  @Ignore("b/143431384: Re-enable shrinking")
   public void addProguardConfigurationString() throws Throwable {
     String keepRule = "-keep class java.time.*";
     List<String> keepRules = new ArrayList<>();
@@ -129,6 +130,7 @@
   }
 
   @Test
+  @Ignore("b/143431384: Re-enable shrinking")
   public void addProguardConfigurationFile() throws Throwable {
     String keepRule = "-keep class java.time.*";
     Path keepRuleFile = temp.newFile("keepRuleFile.txt").toPath();