remove old useless code

Signed-off-by: Ncaochuan <caochuan@huawei.com>

multimedia/medialibrary/mediaLibrary_album/Test.json

@@ -49,9 +49,6 @@
                 "hilog -b D -D 0xD002B70", 
                 "scanner_demo",
                 "sleep 10"
-            ],
-            "teardown-command":[
-               
             ]
         },
         {

multimedia/medialibrary/mediaLibrary_base/Test.json

@@ -48,7 +48,6 @@
                 "hilog -p off",
                 "hilog -b I",
                 "hilog -b D -D 0xD002B70", 
-                "setenforce 0",
                 "scanner_demo",
                 "sleep 10"
             ]

multimedia/medialibrary/mediaLibrary_file/Test.json

@@ -52,7 +52,6 @@
                 "hilog -Q pidoff",
                 "hilog -p off",
                 "hilog -b I",
-                "setenforce 0",
                 "hilog -b D -D 0xD002B70", 
                 "scanner_demo",
                 "sleep 10"

multimedia/medialibrary/mediaLibrary_getThumbnail/Test.json

@@ -47,9 +47,6 @@
                 "hilog -b D -D 0xD002B70", 
                 "scanner_demo",
                 "sleep 10"
-            ],
-            "teardown-command":[
-               "rm -rf /storage/media/100/local/files/*"
             ]
         },
         {

multimedia/medialibrary/mediaLibrary_trash/Test.json

@@ -50,9 +50,6 @@
                 "hilog -b D -D 0xD002B70", 
                 "scanner_demo",
                 "sleep 10"
-            ],
-            "teardown-command":[
-               "rm -rf /storage/media/100/local/files/*"
             ]
         },
         {