Remove useless comparison test

The result of certain comparison tests can sometimes be inferred
from their context and the results of other comparisons. Inspect
the code to check whether the logic is correct, and consider
simplifying the logical expression.

Signed-off-by: Thibault Meyer <meyer.thibault@gmail.com>

src/main/java/io/ebeaninternal/server/query/CQueryPlanRawSql.java

@@ -48,10 +48,8 @@ class CQueryPlanRawSql extends CQueryPlan {
     // an associated bean is in the raw SQL but is mapped columnIgnore
     for (int i = 0; i < indexPositions.length; i++) {
       if (indexPositions[i] == 0) {
-        if (i < indexPositions.length) {
-          // expect discriminator column to immediately proceed id column
-          indexPositions[i] = indexPositions[i + 1] - 1;
-        }
+        // expect discriminator column to immediately proceed id column
+        indexPositions[i] = indexPositions[i + 1] - 1;
       }
     }