[Chore](nereids) Remove DropEncryptKeyStmt (apache#54245)

Author: codeDing18

fe/fe-core/src/main/cup/sql_parser.cup

@@ -2619,10 +2619,6 @@ drop_stmt ::=
     {:
         RESULT = new DropWorkloadSchedPolicyStmt(ifExists, policyName);
     :}
-    | KW_DROP KW_ENCRYPTKEY opt_if_exists:ifExists encryptkey_name:keyName
-    {:
-        RESULT = new DropEncryptKeyStmt(ifExists, keyName);
-    :}
     | KW_DROP KW_SQL_BLOCK_RULE opt_if_exists:ifExists ident_list:ruleNames
     {:
         RESULT = new DropSqlBlockRuleStmt(ifExists, ruleNames);

fe/fe-core/src/main/java/org/apache/doris/analysis/DropEncryptKeyStmt.java

@@ -18,7 +18,6 @@
 package org.apache.doris.catalog;
 
 import org.apache.doris.analysis.CreateEncryptKeyStmt;
-import org.apache.doris.analysis.DropEncryptKeyStmt;
 import org.apache.doris.analysis.EncryptKeyName;
 import org.apache.doris.common.MetaNotFoundException;
 import org.apache.doris.common.UserException;
@@ -48,12 +47,6 @@ public static void replayCreateEncryptKey(EncryptKey encryptKey) throws MetaNotF
         db.replayAddEncryptKey(encryptKey);
     }
 
-    public static void dropEncryptKey(DropEncryptKeyStmt stmt) throws UserException {
-        EncryptKeyName name = stmt.getEncryptKeyName();
-        Database db = Env.getCurrentInternalCatalog().getDbOrDdlException(name.getDb());
-        db.dropEncryptKey(stmt.getEncryptKeysSearchDesc(), stmt.isIfExists());
-    }
-
     public static void replayDropEncryptKey(EncryptKeySearchDesc encryptKeySearchDesc) throws MetaNotFoundException {
         String dbName = encryptKeySearchDesc.getKeyEncryptKeyName().getDb();
         Database db = Env.getCurrentInternalCatalog().getDbOrMetaException(dbName);

fe/fe-core/src/main/java/org/apache/doris/catalog/EncryptKeyHelper.java

@@ -41,7 +41,6 @@
 import org.apache.doris.analysis.CreateWorkloadSchedPolicyStmt;
 import org.apache.doris.analysis.DdlStmt;
 import org.apache.doris.analysis.DropCatalogStmt;
-import org.apache.doris.analysis.DropEncryptKeyStmt;
 import org.apache.doris.analysis.DropFunctionStmt;
 import org.apache.doris.analysis.DropIndexPolicyStmt;
 import org.apache.doris.analysis.DropRepositoryStmt;
@@ -95,8 +94,6 @@ public static void execute(Env env, DdlStmt ddlStmt) throws Exception {
             env.dropFunction((DropFunctionStmt) ddlStmt);
         } else if (ddlStmt instanceof CreateEncryptKeyStmt) {
             EncryptKeyHelper.createEncryptKey((CreateEncryptKeyStmt) ddlStmt);
-        } else if (ddlStmt instanceof DropEncryptKeyStmt) {
-            EncryptKeyHelper.dropEncryptKey((DropEncryptKeyStmt) ddlStmt);
         } else if (ddlStmt instanceof CreateTableStmt) {
             env.createTable((CreateTableStmt) ddlStmt);
         } else if (ddlStmt instanceof DropTableStmt) {