Revert "Set a min width for date/time/datetime input widgets to 150px."

This reverts commit 729a1e0.

Author: g1eb

src/date-input.css

@@ -4,7 +4,6 @@
 .datetime-input.date {
   position: relative;
   width: 100%;
-  min-width: 150px;
   height: auto;
   min-height: 4em;
   margin: 0;

src/datetime-input.css

@@ -4,7 +4,6 @@
 .datetime-input.datetime {
   position: relative;
   width: 100%;
-  min-width: 150px;
   height: auto;
   min-height: 4em;
   margin: 0;

src/time-input.css

@@ -4,7 +4,6 @@
 .datetime-input.time {
   position: relative;
   width: 100%;
-  min-width: 150px;
   height: auto;
   min-height: 4em;
   margin: 0;