diff --git a/buildcfg/base.json b/buildcfg/base.json
deleted file mode 100644
index 72435a700e..0000000000
--- a/buildcfg/base.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-
-  "ambiguate-properties": true,
-
-  "checks": {
-    "accessControls": "ERROR",
-    "ambiguousFunctionDecl": "ERROR",
-    "checkDebuggerStatement": "WARNING",
-    "checkEventfulObjectDisposal": "ERROR",
-    "checkProvides": "ERROR",
-    "checkRegExp": "ERROR",
-    "checkStructDictInheritance": "ERROR",
-    "checkTypes": "ERROR",
-    "checkVars": "ERROR",
-    "const": "ERROR",
-    "constantProperty": "ERROR",
-    "deprecated": "ERROR",
-    "duplicate": "ERROR",
-    "duplicateMessage": "ERROR",
-    "es3": "ERROR",
-    "es5Strict": "ERROR",
-    "externsValidation": "ERROR",
-    "fileoverviewTags": "ERROR",
-    "globalThis": "ERROR",
-    "internetExplorerChecks": "ERROR",
-    "invalidCasts": "ERROR",
-    "misplacedTypeAnnotation": "ERROR",
-    "missingProperties": "ERROR",
-    "nonStandardJsDocs": "ERROR",
-    "strictModuleDepCheck": "ERROR",
-    "suspiciousCode": "ERROR",
-    "typeInvalidation": "ERROR",
-    "tweakValidation": "ERROR",
-    "undefinedNames": "ERROR",
-    "undefinedVars": "ERROR",
-    "unknownDefines": "ERROR",
-    "uselessCode": "ERROR",
-    "violatedModuleDep": "ERROR",
-    "visibility": "ERROR"
-  },
-
-  "define": {
-    "goog.dom.ASSUME_STANDARDS_MODE": true,
-    "goog.DEBUG": false
-  },
-
-  "disambiguate-properties": true,
-
-  "externs": [
-    "../externs/bingmaps.js",
-    "../externs/closure-compiler.js",
-    "../externs/geojson.js",
-    "../externs/oli.js",
-    "../externs/olx.js",
-    "../externs/proj4js.js",
-    "../externs/tilejson.js",
-    "../externs/topojson.js",
-    "../externs/vbarray.js"
-  ],
-
-  "level": "VERBOSE",
-
-  "mode": "ADVANCED",
-
-  "name-suffixes-to-strip": [
-    "logger",
-    "logger_"
-  ],
-
-  "paths": [
-    "../src"
-  ],
-
-  "treat-warnings-as-errors": false,
-
-  "type-prefixes-to-strip": [
-    "goog.asserts",
-    "goog.debug.Console",
-    "goog.debug.DebugWindow",
-    "goog.debug.DevCss",
-    "goog.debug.DivConsole",
-    "goog.debug.EntryPointMonitor",
-    "goog.debug.ErrorHandler",
-    "goog.debug.ErrorReporter",
-    "goog.debug.FancyWindow",
-    "goog.debug.Formatter",
-    "goog.debug.FpsDisplay",
-    "goog.debug.GcDiagnostics",
-    "goog.debug.HtmlFormatter",
-    "goog.debug.LogBuffer",
-    "goog.debug.LogManager",
-    "goog.debug.LogRecord",
-    "goog.debug.Logger",
-    "goog.debug.RelativeTimeProvider",
-    "goog.debug.TextFormatter",
-    "goog.debug.Trace",
-    "goog.debug.catchErrors",
-    "goog.debug.deepExpose",
-    "goog.debug.enhanceError",
-    "goog.debug.entryPointRegistry",
-    "goog.debug.errorHandlerWeakDep",
-    "goog.debug.expose",
-    "goog.debug.exposeArray",
-    "goog.debug.exposeException",
-    "goog.debug.getFunctionName",
-    "goog.debug.getStacktrace",
-    "goog.debug.getStacktraceSimple",
-    "goog.debug.logRecordSerializer",
-    "goog.debug.makeWhitespaceVisible",
-    "goog.debug.normalizeErrorObject",
-    "goog.debug.reflect",
-    "goog.log"
-  ]
-
-}