diff --git a/src/vs/base/common/strings.ts b/src/vs/base/common/strings.ts
index 1245bef3ca4c8fc5003f7eef234af19370b348dc..536eabdbbeada9a9a13d5164e41a8f28412cf801 100644
--- a/src/vs/base/common/strings.ts
+++ b/src/vs/base/common/strings.ts
@@ -618,20 +618,6 @@ export function isFullWidthCharacter(charCode: number): boolean {
 	);
 }
 
-/**
- * Returns an array in which every entry is the offset of a
- * line. There is always one entry which is zero.
- */
-export function computeLineStarts(text: string): number[] {
-	let regexp = /\r\n|\r|\n/g,
-		ret: number[] = [0],
-		match: RegExpExecArray;
-	while ((match = regexp.exec(text))) {
-		ret.push(regexp.lastIndex);
-	}
-	return ret;
-}
-
 /**
  * Given a string and a max length returns a shorted version. Shorting
  * happens at favorable positions - such as whitespace or punctuation characters.
@@ -683,25 +669,6 @@ export function stripUTF8BOM(str: string): string {
 	return startsWithUTF8BOM(str) ? str.substr(1) : str;
 }
 
-/**
- * Appends two strings. If the appended result is longer than maxLength,
- * trims the start of the result and replaces it with '...'.
- */
-export function appendWithLimit(first: string, second: string, maxLength: number): string {
-	const newLength = first.length + second.length;
-	if (newLength > maxLength) {
-		first = '...' + first.substr(newLength - maxLength);
-	}
-	if (second.length > maxLength) {
-		first += second.substr(second.length - maxLength);
-	} else {
-		first += second;
-	}
-
-	return first;
-}
-
-
 export function safeBtoa(str: string): string {
 	return btoa(encodeURIComponent(str)); // we use encodeURIComponent because btoa fails for non Latin 1 values
 }
diff --git a/src/vs/base/common/uuid.ts b/src/vs/base/common/uuid.ts
index 89c97bbb432d61739bcc754a7109a05440a6875f..704882a545c68554cff3eca7b2d1c2f0145a4536 100644
--- a/src/vs/base/common/uuid.ts
+++ b/src/vs/base/common/uuid.ts
@@ -13,8 +13,6 @@ export interface UUID {
 	 * @returns the canonical representation in sets of hexadecimal numbers separated by dashes.
 	 */
 	asHex(): string;
-
-	equals(other: UUID): boolean;
 }
 
 class ValueUUID implements UUID {
@@ -26,10 +24,6 @@ class ValueUUID implements UUID {
 	public asHex(): string {
 		return this._value;
 	}
-
-	public equals(other: UUID): boolean {
-		return this.asHex() === other.asHex();
-	}
 }
 
 class V4UUID extends ValueUUID {
diff --git a/src/vs/base/test/common/strings.test.ts b/src/vs/base/test/common/strings.test.ts
index 9212cce234fb38c470023604178cc4c070ae6e3f..fb413969ce8f9a69212ec7306d7bcc576b1e4f6b 100644
--- a/src/vs/base/test/common/strings.test.ts
+++ b/src/vs/base/test/common/strings.test.ts
@@ -103,29 +103,6 @@ suite('Strings', () => {
 		assert.equal(strings.overlap('full', 'full'), 4);
 		assert.equal(strings.overlap('full', 'fulloverlap'), 4);
 	});
-
-	test('computeLineStarts', function () {
-		function assertLineStart(text: string, ...offsets: number[]): void {
-			const actual = strings.computeLineStarts(text);
-			assert.equal(actual.length, offsets.length);
-			if (actual.length !== offsets.length) {
-				return;
-			}
-			while (offsets.length > 0) {
-				assert.equal(actual.pop(), offsets.pop());
-			}
-		}
-
-		assertLineStart('', 0);
-		assertLineStart('farboo', 0);
-		assertLineStart('far\nboo', 0, 4);
-		assertLineStart('far\rboo', 0, 4);
-		assertLineStart('far\r\nboo', 0, 5);
-		assertLineStart('far\n\rboo', 0, 4, 5);
-		assertLineStart('far\n \rboo', 0, 4, 6);
-		assertLineStart('far\nboo\nfar', 0, 4, 8);
-	});
-
 	test('lcut', () => {
 		assert.strictEqual(strings.lcut('foo bar', 0), '');
 		assert.strictEqual(strings.lcut('foo bar', 1), 'bar');
@@ -218,13 +195,6 @@ suite('Strings', () => {
 		assert.strictEqual(' 	  '.trim(), '');
 	});
 
-	test('appendWithLimit', function () {
-		assert.strictEqual(strings.appendWithLimit('ab', 'cd', 100), 'abcd');
-		assert.strictEqual(strings.appendWithLimit('ab', 'cd', 2), '...cd');
-		assert.strictEqual(strings.appendWithLimit('ab', 'cdefgh', 4), '...efgh');
-		assert.strictEqual(strings.appendWithLimit('abcdef', 'ghijk', 7), '...efghijk');
-	});
-
 	test('repeat', () => {
 		assert.strictEqual(strings.repeat(' ', 4), '    ');
 		assert.strictEqual(strings.repeat(' ', 1), ' ');
diff --git a/src/vs/base/test/common/uuid.test.ts b/src/vs/base/test/common/uuid.test.ts
index c9c371742760b671575bd87869aa5e5f4a98bfcc..eaa4ed3dbf0ecfb73951ada6a56da988117519ca 100644
--- a/src/vs/base/test/common/uuid.test.ts
+++ b/src/vs/base/test/common/uuid.test.ts
@@ -12,14 +12,13 @@ suite('UUID', () => {
 		var asHex = uuid.v4().asHex();
 		assert.equal(asHex.length, 36);
 		assert.equal(asHex[14], '4');
-		assert(asHex[19] === '8' || asHex[19] === '9' || asHex[19] === 'a' || asHex[19] === 'b');
+		assert.ok(asHex[19] === '8' || asHex[19] === '9' || asHex[19] === 'a' || asHex[19] === 'b');
 	});
 
 	test('parse', () => {
 		var id = uuid.v4();
 		var asHext = id.asHex();
 		var id2 = uuid.parse(asHext);
-		assert(id.equals(id2));
-		assert(id2.equals(id));
+		assert.equal(id.asHex(), id2.asHex());
 	});
-});
\ No newline at end of file
+});