Remove jcodec dependency, bump kill-clips to 6075789

The kill-clips plugin no longer depends on jcodec for H.264 encoding;
it now ships only the in-tree MJPEG AVI encoder. Drops the jcodec
entries from build.gradle and verification-metadata.xml, and updates
the pinned plugin commit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: csvernon

package/verification-template/build.gradle

@@ -139,12 +139,6 @@ dependencies {
 	thirdParty("org.tomlj:tomlj:1.1.1") {
 		because "resource-packs, friendly-guide"
 	}
-	thirdParty("org.jcodec:jcodec:0.2.5") {
-		because "kill-clips"
-	}
-	thirdParty("org.jcodec:jcodec-javase:0.2.5") {
-		because "kill-clips"
-	}
 }
 
 task verifyCore {

package/verification-template/gradle/verification-metadata.xml

@@ -1127,22 +1127,6 @@
             <sha256 value="e4dc76ef840014f3739e100813426ccc045b0a17e51c5038e69fdbe1f4ced434" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="org.jcodec" name="jcodec" version="0.2.5">
-         <artifact name="jcodec-0.2.5.jar">
-            <sha256 value="890329dad124e8b739c1d6602a59a53c8a474daddff265c2561e21c498496c81" origin="Generated by Gradle"/>
-         </artifact>
-         <artifact name="jcodec-0.2.5.pom">
-            <sha256 value="30f132c786d253a720acbc773fa800a4dfb23c8eb9bf7690bbbcc6aa33d4ee8a" origin="Generated by Gradle"/>
-         </artifact>
-      </component>
-      <component group="org.jcodec" name="jcodec-javase" version="0.2.5">
-         <artifact name="jcodec-javase-0.2.5.jar">
-            <sha256 value="8a72ff7560bce1c89c1d815816d1304383bb4048afeeb91f200b7a1e213ab6ae" origin="Generated by Gradle"/>
-         </artifact>
-         <artifact name="jcodec-javase-0.2.5.pom">
-            <sha256 value="74f3903abcab5edfb6de2f5bf0a54d2552cead5c8aae4fe1460ccabc7816ab63" origin="Generated by Gradle"/>
-         </artifact>
-      </component>
       <component group="org.jetbrains" name="annotations" version="23.0.0">
          <artifact name="annotations-23.0.0.jar">
             <sha256 value="7b0f19724082cbfcbc66e5abea2b9bc92cf08a1ea11e191933ed43801eb3cd05" origin="Generated by Gradle"/>

plugins/kill-clips

@@ -1,2 +1,2 @@
 repository=https://github.com/csvernon/killClips.git
-commit=737fc2d62822e43cea4a7cacca42f5dfb5565291
+commit=607578903558684cb5921e623603b2889b5eb5e2