Fix #3844: Combine chapter listing double string to one string (#4903)

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## Explanation
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Fix #3844: When merged, this PR will;
- Remove the `R.plurals.chapter_count_with_story_name` from the strings
file.
- Remove all translations of the
`R.plurals.chapter_count_with_story_name`.
- Delete the `computeStoryNameChapterCountContainerContentDescription()`
method from `StorySummaryViewModel` which is no longer used.

The approach to delete the above files was necessitated by a change made
on [PR #4441](#4441). The PR
switched from a chapter-based progress system i.e. _Chapter 1 of 10_ to
a percentage-based progress system. This made the
`chapter_count_with_story_name` strings and the
`computeStoryNameChapterCountContainerContentDescription()` method used
to generate the chapter-based progress text redundant. These have been
removed to eliminate this redundancy.

## Essential Checklist
<!-- Please tick the relevant boxes by putting an "x" in them. -->
- [x] The PR title and explanation each start with "Fix #bugnum: " (If
this PR fixes part of an issue, prefix the title with "Fix part of
#bugnum: ...".)
- [x] Any changes to
[scripts/assets](https://github.com/oppia/oppia-android/tree/develop/scripts/assets)
files have their rationale included in the PR explanation.
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guide](https://github.com/oppia/oppia-android/wiki/Coding-style-guide).
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Studio
([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#undo-unnecessary-changes)).
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is up-to-date with "develop".
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---------

Co-authored-by: Ben Henning <[email protected]>

app/src/main/java/org/oppia/android/app/topic/lessons/StorySummaryViewModel.kt

@@ -41,17 +41,6 @@ class StorySummaryViewModel(
     storyProgressPercentageText.set(computeStoryProgressPercentageText(storyPercentage))
   }
 
-  fun computeStoryNameChapterCountContainerContentDescription(): String {
-    // TODO(#3844): Combine these strings together.
-    val chapterCountText =
-      resourceHandler.getQuantityStringInLocaleWithWrapping(
-        R.plurals.chapter_count, storySummary.chapterCount, storySummary.chapterCount.toString()
-      )
-    return resourceHandler.getStringInLocaleWithWrapping(
-      R.string.chapter_count_with_story_name, chapterCountText, storyTitle
-    )
-  }
-
   fun computeChapterCountText(): String {
     return resourceHandler.getQuantityStringInLocaleWithWrapping(
       R.plurals.chapter_count, storySummary.chapterCount, storySummary.chapterCount.toString()

app/src/main/res/values-ar/strings.xml

@@ -178,7 +178,6 @@
   <string name="size_gb">%s ج.ب</string>
   <string name="correct">صحيح!</string>
   <string name="topic_prefix">الموضوع: %s</string>
-  <string name="chapter_count_with_story_name">%1$s في %2$s</string>
   <plurals name="chapter_count">
     <item quantity="zero">و لا فصل</item>
     <item quantity="one">فصلًا واحدًا</item>

app/src/main/res/values-pt-rBR/strings.xml

@@ -172,7 +172,6 @@
   <string name="size_gb">%s GB</string>
   <string name="correct">Correto!</string>
   <string name="topic_prefix">Tópico: %s</string>
-  <string name="chapter_count_with_story_name">%1$s em %2$s</string>
   <plurals name="chapter_count">
     <item quantity="one">1 Capítulo\n    </item>
     <item quantity="other">\n      %s Capítulos\n    </item>

app/src/main/res/values-sw/strings.xml

@@ -164,7 +164,6 @@
   <string name="size_gb">%s GB</string>
   <string name="correct">Sahihi!</string>
   <string name="topic_prefix">Mada: %s</string>
-  <string name="chapter_count_with_story_name">%1$s katika %2$s</string>
   <plurals name="chapter_count">
     <item quantity="one">Sura 1</item>
     <item quantity="other">Sura %s</item>

app/src/main/res/values/strings.xml

@@ -186,7 +186,6 @@
   <string name="correct">Correct!</string>
   <string name="topic_prefix">Topic: %s</string>
   <string name="welcome_profile_name">%s!</string>
-  <string name="chapter_count_with_story_name">%1$s in %2$s</string>
   <plurals name="chapter_count">
     <item quantity="one">
       1 Chapter