Update README - Topic Tags

Author: MukulParasar

README.md

@@ -37,27 +37,10 @@ https://leetcode.com/u/mukul_parashar/
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 | [0033-search-in-rotated-sorted-array](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0033-search-in-rotated-sorted-array) |
-| [0042-trapping-rain-water](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0042-trapping-rain-water) |
 | [0081-search-in-rotated-sorted-array-ii](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0081-search-in-rotated-sorted-array-ii) |
 ## Binary Search
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 | [0033-search-in-rotated-sorted-array](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0033-search-in-rotated-sorted-array) |
 | [0081-search-in-rotated-sorted-array-ii](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0081-search-in-rotated-sorted-array-ii) |
-## Two Pointers
-|  |
-| ------- |
-| [0042-trapping-rain-water](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0042-trapping-rain-water) |
-## Dynamic Programming
-|  |
-| ------- |
-| [0042-trapping-rain-water](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0042-trapping-rain-water) |
-## Stack
-|  |
-| ------- |
-| [0042-trapping-rain-water](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0042-trapping-rain-water) |
-## Monotonic Stack
-|  |
-| ------- |
-| [0042-trapping-rain-water](https://github.com/MukulParasar/leetcode-java-solutions/tree/master/0042-trapping-rain-water) |
 <!---LeetCode Topics End-->