Revert upgrade to Aspectj 1.8.10

See gh-7681

Author: snicoll

spring-boot-dependencies/pom.xml

@@ -47,7 +47,7 @@
 		<antlr2.version>2.7.7</antlr2.version>
 		<appengine.version>1.9.48</appengine.version>
 		<artemis.version>1.3.0</artemis.version>
-		<aspectj.version>1.8.10</aspectj.version>
+		<aspectj.version>1.8.9</aspectj.version>
 		<assertj.version>2.5.0</assertj.version>
 		<atomikos.version>3.9.3</atomikos.version>
 		<bitronix.version>2.1.4</bitronix.version>