diff --git a/acinclude.m4 b/acinclude.m4
index 1b730cf9c8..1f98acd7de 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1743,16 +1743,6 @@ AC_DEFUN([CURL_CC_DEBUG_OPTS],
 
          WARN="-wd279,269,981,1418,1419"
 
-         if test "$gccnum" -eq "900"; then
-            dnl icc 9.0 when compiling its generated code for its own FD_SET,
-            dnl FD_ISSET, and FD_ZERO macros emits warnings #1469 and #593.
-            dnl So for icc 9.0 we also ignore warnings #1469 and #593.
-            dnl * 593 warns on "variable __d0 was set but never used"
-            dnl * 1469 warns on "cc clobber ignored"
-            dnl
-            WARN="$WARN,593,1469"
-         fi
-
          if test "$gccnum" -gt "600"; then
             dnl icc 6.0 and older doesn't have the -Wall flag
             WARN="-Wall $WARN"
diff --git a/ares/acinclude.m4 b/ares/acinclude.m4
index 33ee8d1369..7ba0fc60f9 100644
--- a/ares/acinclude.m4
+++ b/ares/acinclude.m4
@@ -1350,16 +1350,6 @@ AC_DEFUN([CURL_CC_DEBUG_OPTS],
 
          WARN="-wd279,269,981,1418,1419"
 
-         if test "$gccnum" -eq "900"; then
-            dnl icc 9.0 when compiling its generated code for its own FD_SET,
-            dnl FD_ISSET, and FD_ZERO macros emits warnings #1469 and #593.
-            dnl So for icc 9.0 we also ignore warnings #1469 and #593.
-            dnl * 593 warns on "variable __d0 was set but never used"
-            dnl * 1469 warns on "cc clobber ignored"
-            dnl
-            WARN="$WARN,593,1469"
-         fi
-
          if test "$gccnum" -gt "600"; then
             dnl icc 6.0 and older doesn't have the -Wall flag
             WARN="-Wall $WARN"