Remove configure checks for asinh, acosh, atanh, log1p, hypot

Author: Girgias

ext/standard/config.m4

@@ -303,12 +303,6 @@ if test "$ac_cv_attribute_aligned" = "yes"; then
   AC_DEFINE([HAVE_ATTRIBUTE_ALIGNED], 1, [whether the compiler supports __attribute__ ((__aligned__))])
 fi
 
-dnl
-dnl Check for available functions
-dnl
-dnl log2 could be used to improve the log function, however it requires C99. The
-dnl check for log2 should be turned on, as soon as we support C99.
-AC_CHECK_FUNCS(asinh acosh atanh log1p hypot)
 AC_FUNC_FNMATCH
 
 dnl

win32/build/confutils.js

@@ -2300,19 +2300,6 @@ function generate_config_h()
 		outfile.WriteLine("#define " + keys[i] + " " + pieces);
 	}
 
-	if (VS_TOOLSET) {
-		if (VCVERS >= 1800) {
-			outfile.WriteLine("");
-			outfile.WriteLine("#define HAVE_ACOSH 1");
-			outfile.WriteLine("#define HAVE_ASINH 1");
-			outfile.WriteLine("#define HAVE_ATANH 1");
-		}
-		if (VCVERS >= 1900) {
-			outfile.WriteLine("#define HAVE_LOG1P 1");
-		}
-	}
-
-
 	outfile.Close();
 }