Run iceberg tests without a diff at all and see if that works.

Author: mbutrovich

.github/actions/setup-iceberg-builder/action.yaml

@@ -31,9 +31,3 @@ runs:
         path: apache-iceberg
         ref: apache-iceberg-${{inputs.iceberg-version}}
         fetch-depth: 1
-
-    - name: Setup Iceberg for Comet
-      shell: bash
-      run: |
-        cd apache-iceberg
-        git apply ../dev/diffs/iceberg/${{inputs.iceberg-version}}.diff

common/src/main/scala/org/apache/comet/CometConf.scala

@@ -116,7 +116,7 @@ object CometConf extends ShimCometConf {
           "planning is performed by Spark, and the resulting FileScanTasks are serialized " +
           "and passed to the native execution layer for reading data files.")
       .booleanConf
-      .createWithDefault(false)
+      .createWithDefault(true)
 
   val COMET_RESPECT_PARQUET_FILTER_PUSHDOWN: ConfigEntry[Boolean] =
     conf("spark.comet.parquet.respectFilterPushdown")