updating the red color brightness for emergency items

also, removed a color from symbols since we don't need to use it java
code anymore. It was originally used as a text color in java code.
However, now the text color has been updated to use black (which is
already available in the android framework resources)

Screenshot - https://screenshot.googleplex.com/AWvZd8CNrRy5usY

BUG: 194355651
Change-Id: I3fcb9c4ac6035b3bdfc8752a1c29554993ebc0e9
(cherry picked from commit 251d404f5f7023945149dfa647d8419e22eb92fb)

core/res/res/drawable-watch/global_actions_item_red_background_shape.xml

@@ -18,5 +18,5 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">
     <corners android:radius="26dp"/>
-    <solid android:color="@color/wear_material_red_400"/>
+    <solid android:color="@color/wear_material_red_mid"/>
 </shape>

core/res/res/values-watch/colors.xml

@@ -17,6 +17,6 @@
 
 <resources>
     <!-- Wear Material standard colors -->
-    <color name="wear_material_red_400">#EE675C</color>
+    <color name="wear_material_red_mid">#CC5D58</color>
     <color name="wear_material_grey_900">#202124</color>
 </resources>

core/res/res/values/symbols.xml

@@ -4591,7 +4591,6 @@
   <java-symbol type="fraction" name="global_actions_vertical_padding_percentage" />
   <java-symbol type="fraction" name="global_actions_horizontal_padding_percentage" />
   <java-symbol type="drawable" name="global_actions_item_red_background" />
-  <java-symbol type="color" name="wear_material_grey_900" />
 
   <java-symbol type="string" name="config_wearSysUiPackage"/>
   <java-symbol type="string" name="config_wearSysUiMainActivity"/>