remove redundant encoding check

Author: vigyasharma

lucene/core/src/java/org/apache/lucene/search/ByteVectorSimilarityValuesSource.java

@@ -79,15 +79,7 @@ public VectorScorer getScorer(LeafReaderContext ctx) throws IOException {
       ByteVectorValues.checkField(ctx.reader(), fieldName);
       return null;
     }
-
     final FieldInfo fi = ctx.reader().getFieldInfos().fieldInfo(fieldName);
-    if (fi.getVectorEncoding() != VectorEncoding.BYTE) {
-      throw new IllegalArgumentException(
-          "Field "
-              + fieldName
-              + " does not have the expected vector encoding: "
-              + VectorEncoding.BYTE);
-    }
     if (fi.getVectorDimension() != queryVector.length) {
       throw new IllegalArgumentException(
           "Query vector dimension does not match field dimension: "

lucene/core/src/java/org/apache/lucene/search/FloatVectorSimilarityValuesSource.java

@@ -79,15 +79,7 @@ public VectorScorer getScorer(LeafReaderContext ctx) throws IOException {
       FloatVectorValues.checkField(ctx.reader(), fieldName);
       return null;
     }
-
     final FieldInfo fi = ctx.reader().getFieldInfos().fieldInfo(fieldName);
-    if (fi.getVectorEncoding() != VectorEncoding.FLOAT32) {
-      throw new IllegalArgumentException(
-          "Field "
-              + fieldName
-              + " does not have the expected vector encoding: "
-              + VectorEncoding.FLOAT32);
-    }
     if (fi.getVectorDimension() != queryVector.length) {
       throw new IllegalArgumentException(
           "Query vector dimension does not match field dimension: "

lucene/core/src/test/org/apache/lucene/search/TestVectorSimilarityValuesSource.java

@@ -365,12 +365,12 @@ public void testFailuresWithSimilarityValuesSource() throws Exception {
     byte[] byteQueryVector = new byte[] {-10, 20, 30};
 
     expectThrows(
-        IllegalArgumentException.class,
+        IllegalStateException.class,
         () ->
             DoubleValuesSource.similarityToQueryVector(
                 searcher.reader.leaves().get(0), floatQueryVector, "knnByteField1"));
     expectThrows(
-        IllegalArgumentException.class,
+        IllegalStateException.class,
         () ->
             DoubleValuesSource.similarityToQueryVector(
                 searcher.reader.leaves().get(0), byteQueryVector, "knnFloatField1"));