chore: remove unused graphql queries

lib/graphql/gh_create_issue.graphql

@@ -1,13 +0,0 @@
-mutation GhCreateIssue($repoId: ID!, $title: String!, $body: String!) {
-  createIssue(input: { repositoryId: $repoId, title: $title, body: $body }) {
-    issue {
-      number
-      repository {
-        owner {
-          login
-        }
-        name
-      }
-    }
-  }
-}

lib/graphql/gh_follow.graphql

@@ -1,12 +0,0 @@
-mutation GhFollow($id: ID!, $flag: Boolean!) {
-  followUser(input: { userId: $id }) @include(if: $flag) {
-    user {
-      viewerIsFollowing
-    }
-  }
-  unfollowUser(input: { userId: $id }) @skip(if: $flag) {
-    user {
-      viewerIsFollowing
-    }
-  }
-}

lib/graphql/gh_object.graphql

@@ -1,23 +0,0 @@
-query GhObject($owner: String!, $name: String!, $expression: String!) {
-  repository(owner: $owner, name: $name) {
-    object(expression: $expression) {
-      __typename
-      ... on Blob {
-        text
-        byteSize # x
-      }
-      ... on Tree {
-        entries {
-          type
-          name
-          object {
-            __typename
-            ... on Blob {
-              byteSize
-            }
-          }
-        }
-      }
-    }
-  }
-}

lib/graphql/gh_repo_id.graphql

@@ -1,5 +0,0 @@
-query GhRepoId($owner: String!, $name: String!) {
-  repository(owner: $owner, name: $name) {
-    id
-  }
-}

lib/graphql/gh_star.graphql

@@ -1,12 +0,0 @@
-mutation GhStar($id: ID!, $flag: Boolean!) {
-  addStar(input: { starrableId: $id }) @include(if: $flag) {
-    starrable {
-      viewerHasStarred
-    }
-  }
-  removeStar(input: { starrableId: $id }) @skip(if: $flag) {
-    starrable {
-      viewerHasStarred
-    }
-  }
-}

lib/graphql/gh_watch.graphql

@@ -1,10 +0,0 @@
-mutation GhWatch($id: ID!, $state: SubscriptionState!) {
-  updateSubscription(input: { subscribableId: $id, state: $state }) {
-    subscribable {
-      __typename
-      ... on Repository {
-        viewerSubscription
-      }
-    }
-  }
-}