test: Disabling the databoost Integration tests till GA (#2374)

Author: gauravpurohit06

google-cloud-spanner/src/test/java/com/google/cloud/spanner/it/ITBatchReadTest.java

@@ -241,6 +241,8 @@ public void readUsingIndex() {
 
   @Test
   public void dataBoostRead() {
+    // TODO: Remove the following check during GA
+    assumeFalse("DataBoost feature is not yet generally available", true);
     assumeFalse("Emulator does not support data boost read", isUsingEmulator());
 
     BitSet seenRows = new BitSet(numRows);
@@ -295,6 +297,8 @@ private PartitionOptions getRandomPartitionOptions() {
 
   @Test
   public void dataBoostQuery() {
+    // TODO: Remove the following check during GA
+    assumeFalse("DataBoost feature is not yet generally available", true);
     assumeFalse("Emulator does not support data boost query", isUsingEmulator());
     BitSet seenRows = new BitSet(numRows);
     TimestampBound bound = getRandomBound();