Fix strategy not used compiler warning

There is a compiler warning about strategy not being used.
I checked with Eric and this seems to be intended and not
a bug. Thus, removing this extra code.

Bug: 209879413
Test: Compiles
Change-Id: I4a9b32b0f67c6576ef6dc046616f65ca6b242da5
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index ec414e0..ed4666f 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -4084,7 +4084,6 @@
     // transfer all effects one by one so that new effect chain is created on new thread with
     // correct buffer sizes and audio parameters and effect engines reconfigured accordingly
     sp<EffectChain> dstChain;
-    uint32_t strategy = 0; // prevent compiler warning
     sp<EffectModule> effect = chain->getEffectFromId_l(0);
     Vector< sp<EffectModule> > removed;
     status_t status = NO_ERROR;
@@ -4109,7 +4108,6 @@
                 status = NO_INIT;
                 break;
             }
-            strategy = dstChain->strategy();
         }
         effect = chain->getEffectFromId_l(0);
     }