diff --git a/js/src/frontend/BytecodeEmitter.cpp b/js/src/frontend/BytecodeEmitter.cpp
index f192220e30..5699c74603 100644
--- a/js/src/frontend/BytecodeEmitter.cpp
+++ b/js/src/frontend/BytecodeEmitter.cpp
@@ -9644,126 +9644,6 @@ BytecodeEmitter::emitCalleeAndThis(
     return true;
 }
 
-// NOTE: Equivalent to CallOrNewEmitter::emitThis
-bool
-BytecodeEmitter::emitCallOrNewThis(
-    ParseNode* callNode,
-    bool isCall)
-{
-    // Emit room for |this|.
-    if (!isCall) {
-        JSOp opForEmit;
-        if (IsNewOp(callNode->getOp())) {
-            opForEmit = JSOP_IS_CONSTRUCTING;
-        } else {
-            opForEmit = JSOP_UNDEFINED;
-        }
-        if (!emit1(opForEmit)) {
-            return false;
-        }
-    }
-
-    return true;   
-}
-
-// NOTE: The following function is equivalent to CallOrNewEmitter::emitEnd
-// and BytecodeEmitter::emitArguments in a future refactor
-bool
-BytecodeEmitter::emitCallOrNewArgumentsAndEnd(
-    ParseNode* callNode,
-    ParseNode* calleeNode,
-    bool isCall,
-    ValueUsage valueUsage)
-{
-    uint32_t argumentCount = callNode->pn_count - 1;
-    if (argumentCount >= ARGC_LIMIT) {
-        parser->tokenStream.reportError(isCall
-                                        ? JSMSG_TOO_MANY_FUN_ARGS
-                                        : JSMSG_TOO_MANY_CON_ARGS);
-        return false;
-    }
-
-    JSOp op = callNode->getOp();
-    bool isSpread = IsSpreadOp(op);
-
-    /*
-     * Emit code for each argument in order, then emit the JSOP_*CALL or
-     * JSOP_NEW bytecode with a two-byte immediate telling how many args
-     * were pushed on the operand stack.
-     */
-    ParseNode* argumentNode = calleeNode->pn_next;
-    if (!isSpread) {
-        while (argumentNode) {
-            if (!emitTree(argumentNode)) {
-                return false;
-            }
-            argumentNode = argumentNode->pn_next;
-        }
-    } else {
-        JumpList jmp;
-        bool optCodeEmitted = false;
-        if (argumentCount == 1) {
-            if (!emitOptimizeSpread(argumentNode->pn_kid, &jmp,
-                                    &optCodeEmitted)) {
-                return false;
-            }
-        }
-
-        if (!emitArray(argumentNode, argumentCount, JSOP_SPREADCALLARRAY)) {
-            return false;
-        }
-
-        if (optCodeEmitted) {
-            if (!emitJumpTargetAndPatch(jmp)) {
-                return false;
-            }
-        }
-    }
-
-    if (IsNewOp(op)) {
-        if (callNode->isKind(PNK_SUPERCALL)) {
-            if (!emit1(JSOP_NEWTARGET)) {
-                return false;
-            }
-        } else {
-            // Repush the callee as new.target
-            uint32_t finalArgumentCount = argumentCount + 1;
-            if (isSpread) {
-                finalArgumentCount = 2;
-            }
-            if (!emitDupAt(finalArgumentCount)) {
-                return false;
-            }
-        }
-    }
-
-    if (!isSpread) {
-        JSOp callOp = op;
-        if (callOp == JSOP_CALL && valueUsage == ValueUsage::IgnoreValue) {
-            callOp = JSOP_CALL_IGNORES_RV;
-        }
-        if (!emitCall(callOp, argumentCount, callNode)) {
-            return false;
-        }
-        checkTypeSet(callOp);
-    } else {
-        if (!emit1(op)) {
-            return false;
-        }
-        checkTypeSet(op);
-    }
-
-    if (IsEvalOp(op)) {
-        uint32_t lineNum =
-            parser->tokenStream.srcCoords.lineNum(callNode->pn_pos.begin);
-        if (!emitUint32Operand(JSOP_LINENO, lineNum)) {
-            return false;
-        }
-    }
-
-    return true;
-}
-
 bool
 BytecodeEmitter::emitRightAssociative(ParseNode* pn)
 {
diff --git a/js/src/frontend/BytecodeEmitter.h b/js/src/frontend/BytecodeEmitter.h
index 956ade1545..47400658dc 100644
--- a/js/src/frontend/BytecodeEmitter.h
+++ b/js/src/frontend/BytecodeEmitter.h
@@ -766,12 +766,6 @@ struct MOZ_STACK_CLASS BytecodeEmitter
                                                 ParseNode* calleeNode,
                                                 CallOrNewEmitter& cone,
                                                 OptionalEmitter& oe);
-    MOZ_MUST_USE bool emitCallOrNewThis(ParseNode* callNode,
-                                        bool isCall);
-    MOZ_MUST_USE bool emitCallOrNewArgumentsAndEnd(ParseNode* callNode,
-                                                   ParseNode* calleeNode,
-                                                   bool isCall,
-                                                   ValueUsage valueUsage);
 
     MOZ_MUST_USE bool emitSelfHostedCallFunction(ParseNode* pn);
     MOZ_MUST_USE bool emitSelfHostedResumeGenerator(ParseNode* pn);