4 files changed, 1 insertions, 60 deletions
diff --git a/packages/contracts/globals.d.ts b/packages/contracts/globals.d.ts
index c6597054a..94e63a32d 100644
--- a/packages/contracts/globals.d.ts
+++ b/packages/contracts/globals.d.ts
@@ -1,35 +1,6 @@
-declare module 'chai-bignumber';
-declare module 'dirty-chai';
-
-// HACK: In order to merge the bignumber declaration added by chai-bignumber to the chai Assertion
-// interface we must use `namespace` as the Chai definitelyTyped definition does. Since we otherwise
-// disallow `namespace`, we disable tslint for the following.
-/* tslint:disable */
-declare namespace Chai {
-    interface Assertion {
-        bignumber: Assertion;
-    }
-}
-/* tslint:enable */
-
 declare module '*.json' {
     const json: any;
     /* tslint:disable */
     export default json;
     /* tslint:enable */
 }
-
-declare module 'solc' {
-    export function compile(sources: any, optimizerEnabled: number, findImports: (importPath: string) => any): any;
-    export function setupMethods(solcBin: any): any;
-}
-
-declare module 'web3-eth-abi' {
-    export function encodeParameters(typesArray: string[], parameters: any[]): string;
-}
-
-declare module 'ethereumjs-abi' {
-    const soliditySHA3: (argTypes: string[], args: any[]) => Buffer;
-    const soliditySHA256: (argTypes: string[], args: any[]) => Buffer;
-    const methodID: (name: string, types: string[]) => Buffer;
-}
diff --git a/packages/contracts/globalsAugment.d.ts b/packages/contracts/globalsAugment.d.ts
deleted file mode 100644
index 9b16ce2ad..000000000
--- a/packages/contracts/globalsAugment.d.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import { BigNumber } from '@0xproject/utils';
-
-// HACK: This module overrides the Chai namespace so that we can use BigNumber types inside.
-// Source: https://github.com/Microsoft/TypeScript/issues/7352#issuecomment-191547232
-declare global {
-    // HACK: In order to merge the bignumber declaration added by chai-bignumber to the chai Assertion
-    // interface we must use `namespace` as the Chai definitelyTyped definition does. Since we otherwise
-    // disallow `namespace`, we disable tslint for the following.
-    /* tslint:disable */
-    namespace Chai {
-        interface NumberComparer {
-            (value: number | BigNumber, message?: string): Assertion;
-        }
-        interface NumericComparison {
-            greaterThan: NumberComparer;
-        }
-    }
-    /* tslint:enable */
-}
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index 9d7a6c87c..8ffe6e992 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -59,8 +59,6 @@
         "shx": "^0.2.2",
         "solc": "^0.4.18",
         "tslint": "5.8.0",
-        "types-bn": "^0.0.1",
-        "types-ethereumjs-util": "0xProject/types-ethereumjs-util",
         "typescript": "2.7.1",
         "yargs": "^10.0.3"
     },
diff --git a/packages/contracts/tsconfig.json b/packages/contracts/tsconfig.json
index f32a3682a..717415073 100644
--- a/packages/contracts/tsconfig.json
+++ b/packages/contracts/tsconfig.json
@@ -4,17 +4,8 @@
         "outDir": "lib",
         "baseUrl": ".",
         "declaration": false,
-        "noImplicitThis": false,
         "allowJs": true
     },
-    "include": [
-        "../../node_modules/types-ethereumjs-util/index.d.ts",
-        "../../node_modules/types-bn/index.d.ts",
-        "./globals.d.ts",
-        "./src/**/*",
-        "./util/**/*",
-        "./test/**/*",
-        "./migrations/**/*"
-    ],
+    "include": ["./globals.d.ts", "./src/**/*", "./util/**/*", "./test/**/*", "./migrations/**/*"],
     "exclude": ["./deploy/solc/solc_bin"]
 }