build: add task to delete .tar.gz files before building the app module

Author: shubham0204

app/build.gradle.kts

@@ -67,6 +67,21 @@ android {
     }
 }
 
+tasks.create<Delete>("deleteTarArchivesFromLlamaCpp") {
+    delete {
+        fileTree("${rootProject.projectDir}/llama.cpp") {
+            include("**/*.tar.gz")
+        }
+    }
+    doLast {
+        println("Deleted all .tar.gz files from llama.cpp submodule")
+    }
+}
+
+tasks.named("preBuild") {
+    dependsOn("deleteTarArchivesFromLlamaCpp")
+}
+
 ksp {
     arg("KOIN_CONFIG_CHECK", "true")
 }