diff --git a/extra_tests/Pipfile.lock b/extra_tests/Pipfile.lock
deleted file mode 100644
index 1269a6d53..000000000
--- a/extra_tests/Pipfile.lock
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-    "_meta": {
-        "hash": {
-            "sha256": "885518554897c6d128a8b07e2f1d3651be0c94b078d4ec36c0e2737d657cbc66"
-        },
-        "pipfile-spec": 6,
-        "requires": {
-            "python_version": "3.6"
-        },
-        "sources": [
-            {
-                "name": "pypi",
-                "url": "https://pypi.org/simple",
-                "verify_ssl": true
-            }
-        ]
-    },
-    "default": {
-        "atomicwrites": {
-            "hashes": [
-                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
-                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
-            ],
-            "version": "==1.4.0"
-        },
-        "attrs": {
-            "hashes": [
-                "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6",
-                "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"
-            ],
-            "version": "==20.3.0"
-        },
-        "bytecode": {
-            "hashes": [
-                "sha256:68b1d591c7af0e5c5273e028d3cc0299fbe374dff0cf9149ec7e569be0c573e7",
-                "sha256:c43d5052cbff076bfdf5b0b93ff6c76e461aab628ce47d30637bb200b6b7bb2c"
-            ],
-            "index": "pypi",
-            "version": "==0.8.0"
-        },
-        "importlib-metadata": {
-            "hashes": [
-                "sha256:19192b88d959336bfa6bdaaaef99aeafec179eca19c47c804e555703ee5f07ef",
-                "sha256:2e881981c9748d7282b374b68e759c87745c25427b67ecf0cc67fb6637a1bff9"
-            ],
-            "version": "==4.0.0"
-        },
-        "more-itertools": {
-            "hashes": [
-                "sha256:5652a9ac72209ed7df8d9c15daf4e1aa0e3d2ccd3c87f8265a0673cd9cbc9ced",
-                "sha256:c5d6da9ca3ff65220c3bfd2a8db06d698f05d4d2b9be57e1deb2be5a45019713"
-            ],
-            "markers": "python_version > '2.7'",
-            "version": "==8.7.0"
-        },
-        "packaging": {
-            "hashes": [
-                "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5",
-                "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"
-            ],
-            "version": "==20.9"
-        },
-        "pluggy": {
-            "hashes": [
-                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
-                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
-            ],
-            "version": "==0.13.1"
-        },
-        "py": {
-            "hashes": [
-                "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3",
-                "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"
-            ],
-            "index": "pypi",
-            "version": "==1.10.0"
-        },
-        "pyparsing": {
-            "hashes": [
-                "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
-                "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
-            ],
-            "version": "==2.4.7"
-        },
-        "pytest": {
-            "hashes": [
-                "sha256:4a784f1d4f2ef198fe9b7aef793e9fa1a3b2f84e822d9b3a64a181293a572d45",
-                "sha256:926855726d8ae8371803f7b2e6ec0a69953d9c6311fa7c3b6c1b929ff92d27da"
-            ],
-            "index": "pypi",
-            "version": "==4.6.3"
-        },
-        "six": {
-            "hashes": [
-                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
-                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
-            ],
-            "version": "==1.15.0"
-        },
-        "wcwidth": {
-            "hashes": [
-                "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784",
-                "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"
-            ],
-            "version": "==0.2.5"
-        },
-        "zipp": {
-            "hashes": [
-                "sha256:3607921face881ba3e026887d8150cca609d517579abe052ac81fc5aeffdbd76",
-                "sha256:51cb66cc54621609dd593d1787f286ee42a5c0adbb4b29abea5a63edc3e03098"
-            ],
-            "version": "==3.4.1"
-        }
-    },
-    "develop": {}
-}