Refactor AI lecture materials: Remove unnecessary styling and comments from...

Refactor AI lecture materials: Remove unnecessary styling and comments from Part 5 documentation to streamline content presentation.

2_services/ai_lecture/courses/05_ai_core_libraries/part_5_ai_core_libraries.md

----
-marp: true
-theme: gaia
-class:
-  - lead
-  - invert
----
-
-<!-- _class: lead -->
-<!-- _header: "" -->
-<!-- _footer: "" -->
-
-<style>
-h1 {
-    font-size: 2.5em;
-    font-weight: 600;
-}
-h2 {
-    font-size: 2em;
-    font-weight: 600;
-}
-h3 {
-    font-size: 1.6em;
-    font-weight: 600;
-}
-h4 {
-    font-size: 1.3em;
-    font-weight: 600;
-}
-h5 {
-    font-size: 1.1em;
-    font-weight: 600;
-}
-h6 {
-    font-size: 1em;
-    font-weight: 600;
-}
-p, li, ul, ol, table {
-    font-size: 28px;
-}
-pre, code {
-    font-size: 24px;
-}
-</style>
-
 # Part 5: AI 핵심 라이브러리: NumPy, Pandas, Matplotlib
 
 **⬅️ 이전 시간: [Part 4: 객체 지향 프로그래밍(OOP)](../04_object_oriented_programming/part_4_object_oriented_programming.md)**