(no bug) Drop bogus 'flex-wrap' / 'flex-direction' declarations from non-flex-container style rules, in reftest reference cases. (test-only)

layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-line-horiz-1-ref.html

@@ -16,7 +16,6 @@
   <style>
     .flexContainer {
       display: inline-block;
-      flex-wrap: wrap;
       width: 40px;
       height: 40px;
       background: lightblue;

layout/reftests/w3c-css/submitted/flexbox/flexbox-baseline-multi-line-horiz-2-ref.html

@@ -16,7 +16,6 @@
   <style>
     .flexContainer {
       display: inline-block;
-      flex-wrap: wrap;
       width: 40px;
       /* Split testcase's 40px height into 20px of padding-top and 20px of
          height, to set aside space for the testcase's (invisible) second line

layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-horiz-1-ref.xhtml

@@ -12,7 +12,6 @@
       div.flexbox {
         border: 1px dashed blue;
         font-size: 10px;
-        flex-direction: column;
         margin-bottom: 2px;
       }
       div.a, div.b, div.c { float: left }

layout/reftests/w3c-css/submitted/flexbox/flexbox-sizing-vert-1-ref.xhtml

@@ -13,7 +13,6 @@
         float: left;
         border: 1px dashed blue;
         font-size: 10px;
-        flex-direction: column;
         margin-right: 2px;
       }
       div.a {