Remove unnecessary includes of v8 headers from platform files

src/platform.h

Index: src/platform.h
diff --git a/src/platform.h b/src/platform.h
index 2b6f2865bd5dedda68d5b1282d0b9b33367e858e..f65b8d23a3c9285be58579d9e07637e9e8d39381 100644
--- a/src/platform.h
+++ b/src/platform.h
@@ -105,6 +105,16 @@ double fast_sqrt(double input);
 // on demand.
 void lazily_initialize_fast_exp();
 
+
+// Results of the library implementation of transcendental functions may differ
+// from the one we use in our generated code.  Therefore we use the same
+// generated code both in runtime and compiled code.
+typedef double (*UnaryMathFunction)(double x);
+
+UnaryMathFunction CreateExpFunction();

[Michael Starzinger, 2014/04/28 11:25:49]

I am confused: The implementation of these still lives in the architecture
codegens. Moving the declarations into platform.h seems like the wrong
direction.

+UnaryMathFunction CreateSqrtFunction();
+
+
 // ----------------------------------------------------------------------------
 // Fast TLS support