Remove useless command/check unit test.

This test was a placeholder and did not provide any coverage, but it did give inconsistent results on different shell versions.

test/define.yaml

@@ -740,7 +740,7 @@ unit:
 
       # ----------------------------------------------------------------------------------------------------------------------------
       - name: check
-        total: 4
+        total: 3
         containerReq: true
 
         coverage:

test/src/module/command/checkTest.c

@@ -367,24 +367,6 @@ testRun(void)
         TEST_RESULT_VOID(checkPrimary(dbGroup), "primary == NULL");
     }
 
-    // *****************************************************************************************************************************
-    if (testBegin("checkManifest()"))
-    {
-        argList = strLstNew();
-        hrnCfgArgRawZ(argList, cfgOptStanza, "test1");
-        hrnCfgArgRawZ(argList, cfgOptPgPath, TEST_PATH "/pg");
-        hrnCfgArgKeyRawZ(argList, cfgOptPgHost, 5, "localhost");
-        hrnCfgArgKeyRawZ(argList, cfgOptPgHostCmd, 5, "pgbackrest-bogus");
-        hrnCfgArgKeyRawZ(argList, cfgOptPgPath, 5, "/path/to/pg5");
-        hrnCfgArgKeyRawZ(argList, cfgOptPgHostUser, 5, TEST_USER);
-        HRN_CFG_LOAD(cfgCmdCheck, argList);
-
-        // Placeholder test for manifest
-        TEST_ERROR(
-            checkManifest(), UnknownError,
-            "remote-0 process on 'localhost' terminated unexpectedly [127]: bash: pgbackrest-bogus: command not found");
-    }
-
     // *****************************************************************************************************************************
     if (testBegin("checkDbConfig(), checkArchiveCommand()"))
     {