[misc] drop the /heapdump route and related heapdump package

services/filestore/README.md

@@ -10,7 +10,6 @@ filestore acts as a proxy between the CLSIs and (currently) Amazon S3 storage, p
 * `/project/:project_id/public/:public_file_id`
 * `/project/:project_id/size`
 * `/bucket/:bucket/key/*`
-* `/heapdump`
 * `/shutdown`
 * `/status` - returns `filestore sharelatex up` or `server is being shut down` (HTTP 500)
 * `/health_check` 

services/filestore/app.js

@@ -122,18 +122,6 @@ app.get(
   fileController.getFile
 )
 
-app.get('/heapdump', (req, res, next) =>
-  require('heapdump').writeSnapshot(
-    '/tmp/' + Date.now() + '.filestore.heapsnapshot',
-    (err, filename) => {
-      if (err) {
-        return next(err)
-      }
-      res.send(filename)
-    }
-  )
-)
-
 app.get('/status', function(req, res) {
   res.send('filestore sharelatex up')
 })

services/filestore/package-lock.json

@@ -2716,14 +2716,6 @@
       "resolved": "https://registry.npmjs.org/he/-/he-1.1.1.tgz",
       "integrity": "sha512-z/GDPjlRMNOa2XJiB4em8wJpuuBfrFOlYKTZxtpkdr1uPdibHI8rYA3MY0KDObpVyaes0e/aunid/t88ZI2EKA=="
     },
-    "heapdump": {
-      "version": "0.3.15",
-      "resolved": "https://registry.npmjs.org/heapdump/-/heapdump-0.3.15.tgz",
-      "integrity": "sha512-n8aSFscI9r3gfhOcAECAtXFaQ1uy4QSke6bnaL+iymYZ/dWs9cqDqHM+rALfsHUwukUbxsdlECZ0pKmJdQ/4OA==",
-      "requires": {
-        "nan": "^2.13.2"
-      }
-    },
     "hex2dec": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/hex2dec/-/hex2dec-1.1.2.tgz",

services/filestore/package.json

@@ -26,7 +26,6 @@
     "body-parser": "^1.2.0",
     "express": "^4.2.0",
     "glob": "^7.1.6",
-    "heapdump": "^0.3.2",
     "lodash.once": "^4.1.1",
     "logger-sharelatex": "^1.7.0",
     "metrics-sharelatex": "^2.2.0",